update changelog.md file with new changes

changelog.md

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 # Changelog
 
-All notable changes after version 1.4.0 are documented in this file.
+All notable changes since version 1.0.0 are documented in this file.
+
+## Unreleased
+
+### Fixed
+- Improved multiplayer target selection for execute, carry, and help-up interactions so the nearest valid knocked player is selected instead of an arbitrary player.
+- Added same-dimension and range validation for ongoing player execution and help-up interactions.
+- Broadcast carry mount and dismount passenger updates to tracking clients so other players see carry state changes correctly.
+- Cleaned up carry, help-up, mob execution, and player execution state during recovery, respawn, and logout.
+- Prevented player execution, mob execution, help-up, and carry states from competing for the same knocked player.
+
+## 1.6.0
+
+### Added
+- Added a Help Up feature that lets players revive knocked players by holding the help-up key.
+- Added configurable help-up options for enabling the feature, help-up duration, and recovered health amount.
+- Added help-up progress display support using the existing execution progress overlay.
+- Added advancements for helping up players and being helped up.
+
+### Changed
+- Improved execution handling and validation for multiplayer interactions.
+- Updated network protocol and client/server progress packets to support multiple progress action types.
+
+### Fixed
+- Added missing validation checks around execution state transitions.
 
 ## 1.5.3
-- Fixed a bug where leaving and rejoining the game could result into persisting the knocked state into another save/session after disconnect.
+
+### Fixed
+- Fixed a bug where leaving and rejoining the game could leave knocked state persisting into another save or session after disconnect.
 
 ## 1.5.2
-- Added a configuration option to remove potion effects not listed in the knocked-effect list while a player is knocked.
+
+### Added
+- Added a configuration option to remove potion effects that are not listed in the knocked-effect list while a player is knocked.
 
 ## 1.5.1
-- Fixed execution and carry cleanup to prevent stuck execution/carry states when conditions change mid-action.
+
+### Fixed
+- Fixed execution and carry cleanup to prevent stuck execution or carry states when conditions change mid-action.
 
 ## 1.5.0
-- Added configuration options for mob execution allowlists and for applying custom potion effects while knocked.
-- Added a master toggle for mob executions and stabilized knocked-state handling.
+
+### Added
+- Added configuration options for mob execution allowlists.
+- Added configuration options for potion effects applied while a player is knocked.
+- Added a master toggle for mob executions.
+
+### Fixed
+- Stabilized knocked-state handling around mob execution and recovery.
+
+## 1.4.x
+
+### Added
+- Added player animation library integration.
+- Added prone knocked pose animations.
+- Added execution animations for executors and other observing clients.
+- Added executor id synchronization with execution progress packets.
+- Added a damage type tag for damage that bypasses the knockdown mechanic.
+- Added additional damage tags for knockdown bypass behavior.
+
+### Changed
+- Switched carried knocked player pose to the riding pose.
+- Improved local knocked swim animation handling.
+- Updated execution animation behavior.
+
+### Fixed
+- Fixed mob execution timer and player animation synchronization.
+- Fixed player animator integration issues.
+- Fixed knocked pose reset issues.
+- Fixed a null pointer issue in mob kill handling.
+
+## 1.3.x
+
+### Added
+- Added common configuration support.
+- Added configurable knocked duration, execution time, and totem behavior.
+- Added hostile and aggressive neutral mob execution behavior.
+- Added German and English translation support.
+- Added parameterized translatable player messages.
+
+### Changed
+- Updated the mod for the 1.3.0 and 1.3.1 version line.
+- Improved gravity handling while players are knocked.
+- Refactored player-facing messages to use translation keys and parameters.
+
+### Fixed
+- Fixed death logic issues around knocked players.
+- Fixed duplicated player messages.
+
+## 1.2.x
+
+### Added
+- Added carrying for knocked players with the carry key.
+- Added execution indicator and progress display for executors and knocked players.
+- Added cancellable player executions.
+- Added gripping progress behavior for mob executions.
+- Added first-person rendering handling so carried player models are hidden from the carrier's own view.
+
+### Changed
+- Paused the knocked recovery timer while a player is being carried.
+- Adjusted execution timing and mob execution delay for balance.
+- Refactored mob execution handling and knocked countdown logic.
+
+### Fixed
+- Fixed dropping carried players.
+- Fixed items and XP not dropping correctly when a knocked player is killed.
+- Fixed execution progress bar issues.
+- Fixed mob release behavior so player state updates correctly.
+- Fixed mob kill attempt cleanup for specific players.
+
+## 1.1.x
+
+### Added
+- Added early quality-of-life improvements for the knocked state.
+- Added behavior where damage resets knocked time.
+
+### Fixed
+- Fixed several early knocked-state and multiplayer interaction bugs.