1.18-2

• Various protocol fixes and regression fixing
• Server implementations with encryption now work as expected

1.17.1-2

• Update adventure and add legacy hover event serializer to default serializer
• Update to latest MCAuthLib commit
• Fix two incorrect (swapped) packet IDs for ClientCraftingBookStatePacket & ClientDisplayedRecipePacket (#656)
• Remove unused ServerSetCompressionPacket (#657)
• Throw specific error when encryption could not be initialized
• Use Mojang mapped name for UnexpectedEncryptionException
• Update to Adventure 4.9.3
• Project formatting style changes (#663)
• Use identifiers for all Effect classes; don't use MagicValues
• Updated Lombok to fix broken compilation when using Java 16 (#665)
• Added missing Generic Statistics (#668)

1.18-1

• Added support for 1.18
• Massive refactor to packet names (note: any project currently using this library will need to update to these names; see this page for information on what to do to move over)
• Optimized packet construction to no longer use reflection
• Optimized protocol state switching (e.g. HANDSHAKE -> GAME) to pull from a static codec for packets, rather than re-initializing & registering the protocol every time, for every session)
• Modified all packet fields to be final
• Packets now take in a NetInput field in their constructor
• Entity metadata now has more specific data types

This update includes a large refactor of most every packet; please see this page more info on what has changed.

1.17.1-1

• Update to MCAuthLib 1.4. Fixes a username-based server-side authentication vulnerability. Thanks to @Ry0taK for reporting.

If you use MCProtocolLib as a server, please update. If you use it as a client, you are not affected.

1.16.5-2

• Update to PacketLib 2.0.
  • See PacketLib release notes for important changes.
• Removed deprecated MinecraftProtocol constructors.

1.16.5-1

• Revamp MinecraftProtocol constructors.
  • Status ping mode is now a no-args constructor.
  • Offline mode login is still a single-arg constructor requiring a username.
  • Online mode login is now a two-arg constructor that takes a GameProfile and an access token.
  • Old constructors have been deprecated and will be removed in a future release.
• Replace Message API with Adventure text components.
• Add Lombok With annotation to packet classes to allow creating modified copies of packets.
• Fix ClientCraftingBookStatePacket and ClientDisplayedRecipePacket packet IDs being swapped.
• Fix incorrectly mapped piston directional values.
• Fix reading/writing ServerWorldBorderPacket.
• Update version string to 1.16.5 (still protocol-compatible with 1.16.4).
• Update to PacketLib 1.8.