The Java Version Almanac
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New APIs in Java 24

Comparing Java 24 (24-ea+2-133-open) with Java 20 (20.0.2+9-tem).

Element Modification
java.base
    java.io
      • + sealed
      ObjectOutputStream.PutField
        • + forRemoval
        java.lang.constant
          ConstantDescs
            ClassDesc
              MethodHandleDesc
                MethodTypeDesc
                  • + abstract
                  java.lang.foreign
                    • - preview
                    • + abstract
                    isCloseableBy(Thread)
                    openConfined()
                    openShared()
                    scope()
                    • - preview
                    • - preview
                    withBitAlignment(long)
                    Linker.Option.CaptureCallState
                    • - preview
                    captureCallState(String...)
                    • - preview
                    • + abstract
                    upcallStub(MethodHandle, FunctionDescriptor,...
                    • - preview
                    • - preview
                    bitAlignment()
                    bitOffset(MemoryLayout.PathElement...)
                    bitOffsetHandle(MemoryLayout.PathElement...)
                    bitSize()
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    sequenceLayout(MemoryLayout)
                    • + abstract
                    valueLayout(Class, ByteOrder)
                    • + abstract
                    withBitAlignment(long)
                    • - preview
                    allocateNative(MemoryLayout, SegmentScope)
                    allocateNative(long, SegmentScope)
                    allocateNative(long, long, SegmentScope)
                    array()
                    • + abstract
                    • + abstract
                    get(ValueLayout.OfAddress, long)
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    getAtIndex(ValueLayout.OfAddress, long)
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    getUtf8String(long)
                    • + abstract
                    ofAddress(long, long)
                    ofAddress(long, long, SegmentScope)
                    ofAddress(long, long, SegmentScope, Runnable)
                    scope()
                    segmentOffset(MemorySegment)
                    set(ValueLayout.OfAddress, long, MemorySegment)
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    setAtIndex(ValueLayout.OfAddress, long,...
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    • + abstract
                    setUtf8String(long, String)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    allocate(ValueLayout.OfAddress, MemorySegment)
                    allocate(ValueLayout.OfByte, byte)
                    allocate(ValueLayout.OfChar, char)
                    allocate(ValueLayout.OfDouble, double)
                    allocate(ValueLayout.OfFloat, float)
                    allocate(ValueLayout.OfInt, int)
                    allocate(ValueLayout.OfLong, long)
                    allocate(ValueLayout.OfShort, short)
                    allocateArray(MemoryLayout, long)
                    allocateArray(ValueLayout.OfByte, byte...)
                    allocateArray(ValueLayout.OfChar, char...)
                    allocateArray(ValueLayout.OfDouble, double...)
                    allocateArray(ValueLayout.OfFloat, float...)
                    allocateArray(ValueLayout.OfInt, int...)
                    allocateArray(ValueLayout.OfLong, long...)
                    allocateArray(ValueLayout.OfShort, short...)
                    allocateUtf8String(String)
                    nativeAllocator(SegmentScope)
                    SegmentScope
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    libraryLookup(Path, SegmentScope)
                    libraryLookup(String, SegmentScope)
                    • - preview
                    withBitAlignment(long)
                    VaList.Builder
                    VaList
                    ValueLayout.OfAddress
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    withBitAlignment(long)
                    • - preview
                    arrayElementVarHandle(int...)
                    withBitAlignment(long)
                    java.lang.invoke
                      ClassSpecializer.Factory
                      ClassSpecializer.SpeciesData
                      MethodHandles
                        • - preview
                        • - preview
                        • - preview
                        • - preview
                        • - preview
                        memorySegmentViewVarHandle(ValueLayout)
                        • - preview
                        VarHandle
                          • - final
                          java.lang.reflect
                            ClassFileFormatVersion
                              java.lang.runtime
                                • - preview
                                java.lang
                                  Character.UnicodeBlock
                                    Character
                                      Class
                                        Compiler
                                        FdLibm.Cbrt
                                        FdLibm.Hypot
                                        FdLibm.Pow
                                        • - preview
                                        Math
                                          ModuleLayer.Controller
                                            • - preview
                                            Module
                                              • - preview
                                              StrictMath
                                                • + implements Appendable
                                                • + implements Appendable
                                                String
                                                  ThreadGroup
                                                    allowThreadSuspension(boolean)
                                                    resume()
                                                    stop()
                                                    suspend()
                                                    Thread
                                                      countStackFrames()
                                                      • - preview
                                                      • - preview
                                                      • - preview
                                                      resume()
                                                      • - preview
                                                      suspend()
                                                      StackWalker.Option
                                                        • - preview
                                                        allowSetThreadLocals(boolean)
                                                        • - preview
                                                        allowSetThreadLocals(boolean)
                                                        • - preview
                                                        allowSetThreadLocals(boolean)
                                                        java.net
                                                          DatagramSocketImpl
                                                            • + forRemoval
                                                            • + forRemoval
                                                            Inet4Address
                                                              Inet6Address
                                                                InetAddress
                                                                  MulticastSocket
                                                                    • + forRemoval
                                                                    • + forRemoval
                                                                    • + forRemoval
                                                                    Socket
                                                                      • + forRemoval
                                                                      • + forRemoval
                                                                      java.nio.channels
                                                                        FileChannel
                                                                          map(FileChannel.MapMode, long, long, SegmentScope)
                                                                          java.nio.charset
                                                                            StandardCharsets
                                                                              java.nio.file
                                                                                Path
                                                                                  java.security.cert
                                                                                    CertStore
                                                                                      • + final
                                                                                      java.security.interfaces
                                                                                        • + implements AlgorithmParameterSpec
                                                                                        DSAPrivateKey
                                                                                          DSAPublicKey
                                                                                            ECPrivateKey
                                                                                              ECPublicKey
                                                                                                EdECPrivateKey
                                                                                                  EdECPublicKey
                                                                                                    RSAPrivateKey
                                                                                                      RSAPublicKey
                                                                                                        XECPrivateKey
                                                                                                          XECPublicKey
                                                                                                            java.security
                                                                                                              • - implements Key
                                                                                                              • + implements AsymmetricKey
                                                                                                              • - implements Key
                                                                                                              • + implements AsymmetricKey
                                                                                                              java.text
                                                                                                                ChoiceFormat
                                                                                                                  CompactNumberFormat
                                                                                                                    DecimalFormat
                                                                                                                      MessageFormat
                                                                                                                        NumberFormat
                                                                                                                          SimpleDateFormat
                                                                                                                            java.time
                                                                                                                              Instant
                                                                                                                                java.util.concurrent
                                                                                                                                  ConcurrentSkipListMap
                                                                                                                                    ConcurrentSkipListSet
                                                                                                                                      CopyOnWriteArrayList
                                                                                                                                        DelayQueue
                                                                                                                                          Executors
                                                                                                                                            • - preview
                                                                                                                                            • - preview
                                                                                                                                            ForkJoinPool
                                                                                                                                              • + throws InterruptedException
                                                                                                                                              ForkJoinTask
                                                                                                                                                java.util.random
                                                                                                                                                  RandomGenerator
                                                                                                                                                    java.util.regex
                                                                                                                                                      Pattern
                                                                                                                                                        java.util.stream
                                                                                                                                                          Stream
                                                                                                                                                            java.util.zip
                                                                                                                                                              Deflater
                                                                                                                                                                • + deprecated
                                                                                                                                                                • + deprecated
                                                                                                                                                                Inflater
                                                                                                                                                                  • + deprecated
                                                                                                                                                                  • + deprecated
                                                                                                                                                                  ZipFile
                                                                                                                                                                    java.util
                                                                                                                                                                      ArrayList
                                                                                                                                                                        • + final
                                                                                                                                                                        Collections
                                                                                                                                                                          • - implements Map
                                                                                                                                                                          • + implements SequencedMap
                                                                                                                                                                          • - implements Set
                                                                                                                                                                          • + implements SequencedSet
                                                                                                                                                                          LinkedList
                                                                                                                                                                            Locale
                                                                                                                                                                              TreeMap
                                                                                                                                                                                TreeSet
                                                                                                                                                                                  • + implements SequencedCollection
                                                                                                                                                                                  • - implements Collection
                                                                                                                                                                                  • + implements SequencedCollection
                                                                                                                                                                                  NavigableMap
                                                                                                                                                                                    NavigableSet
                                                                                                                                                                                      • - implements Map
                                                                                                                                                                                      • + implements SequencedMap
                                                                                                                                                                                      • + implements SequencedSet
                                                                                                                                                                                      javax.crypto.interfaces
                                                                                                                                                                                        DHPrivateKey
                                                                                                                                                                                          DHPublicKey
                                                                                                                                                                                            javax.crypto
                                                                                                                                                                                              javax.net.ssl
                                                                                                                                                                                                KeyManagerFactory
                                                                                                                                                                                                  • + final
                                                                                                                                                                                                  TrustManagerFactory
                                                                                                                                                                                                    • + final
                                                                                                                                                                                                    java.compiler
                                                                                                                                                                                                      javax.lang.model.element
                                                                                                                                                                                                        RecordComponentElement
                                                                                                                                                                                                          VariableElement
                                                                                                                                                                                                            javax.lang.model.util
                                                                                                                                                                                                              ElementScanner6
                                                                                                                                                                                                                Elements
                                                                                                                                                                                                                  Types
                                                                                                                                                                                                                    javax.lang.model
                                                                                                                                                                                                                      SourceVersion
                                                                                                                                                                                                                        javax.tools
                                                                                                                                                                                                                          SimpleJavaFileObject
                                                                                                                                                                                                                            java.desktop
                                                                                                                                                                                                                              java.awt.peer
                                                                                                                                                                                                                                WindowPeer
                                                                                                                                                                                                                                  java.beans.beancontext
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                    java.beans
                                                                                                                                                                                                                                      Beans
                                                                                                                                                                                                                                        • + deprecated
                                                                                                                                                                                                                                        • + forRemoval
                                                                                                                                                                                                                                        javax.print.attribute.standard
                                                                                                                                                                                                                                          javax.swing.plaf.synth
                                                                                                                                                                                                                                            SynthComboBoxUI
                                                                                                                                                                                                                                              SynthLookAndFeel
                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                SynthTreeUI
                                                                                                                                                                                                                                                  javax.swing.text.html
                                                                                                                                                                                                                                                    AccessibleHTML.HTMLAccessibleContext
                                                                                                                                                                                                                                                      javax.swing
                                                                                                                                                                                                                                                        JFileChooser
                                                                                                                                                                                                                                                          JScrollBar
                                                                                                                                                                                                                                                            java.management.rmi
                                                                                                                                                                                                                                                              javax.management.remote.rmi
                                                                                                                                                                                                                                                                RMIConnector
                                                                                                                                                                                                                                                                  getMBeanServerConnection(Subject)
                                                                                                                                                                                                                                                                  RMIIIOPServerImpl
                                                                                                                                                                                                                                                                  java.management
                                                                                                                                                                                                                                                                    javax.management.loading
                                                                                                                                                                                                                                                                      MLetContent
                                                                                                                                                                                                                                                                      MLet
                                                                                                                                                                                                                                                                      PrivateMLet
                                                                                                                                                                                                                                                                      MLetMBean
                                                                                                                                                                                                                                                                      javax.management.remote
                                                                                                                                                                                                                                                                        JMXConnector
                                                                                                                                                                                                                                                                          • - abstract
                                                                                                                                                                                                                                                                          • + deprecated
                                                                                                                                                                                                                                                                          • + forRemoval
                                                                                                                                                                                                                                                                          java.net.http
                                                                                                                                                                                                                                                                            java.net.http
                                                                                                                                                                                                                                                                              • + implements AutoCloseable
                                                                                                                                                                                                                                                                              java.xml.crypto
                                                                                                                                                                                                                                                                                javax.xml.crypto.dsig
                                                                                                                                                                                                                                                                                  SignatureMethod
                                                                                                                                                                                                                                                                                    java.xml
                                                                                                                                                                                                                                                                                      javax.xml.catalog
                                                                                                                                                                                                                                                                                        CatalogManager
                                                                                                                                                                                                                                                                                          GroupEntry.ResolveType

                                                                                                                                                                                                                                                                                          This report is based on simple comparison of all public and protected APIs of the java.* and javax.* packages of JDK builds 24-ea+2-133-open and 20.0.2+9-tem. It does not make statements about compatibility.

                                                                                                                                                                                                                                                                                          For the latest Java versions the corresponding CSRs (Compatibility & Specification Review) are linked for a quick reference to find out about the reasoning of the change.