Version 20.0a1

Released 2022-06-09

This is the technical changelog for version 20.0a1. More elaborate release notes can be found in the news channel @pythontelegrambotchannel.

Major Changes:

Drop Support for ujson and instead BaseRequest.parse_json_payload (#3037, #3072)
Drop InputFile.is_image (#3053)
Drop Explicit Type conversions in __init__ s (#3056)
Handle List-Valued Attributes More Consistently (#3057)
Split {Command, Prefix}Handler And Make Attributes Immutable (#3045)
Align Behavior Of JobQueue.run_daily With cron (#3046)
Make PTB Specific Keyword-Only Arguments for PTB Specific in Bot methods (#3035)
Adjust Equality Comparisons to Fit Bot API 6.0 (#3033)
Add Tuple Based Version Info (#3030)- Improve Type Annotations for CallbackContext and Move Default Type Alias to ContextTypes.DEFAULT_TYPE (#3017, #3023)
Rename Job.context to Job.data (#3028)
Rename Handler to BaseHandler (#3019)

Add Application.post_init (#3078)
Add Arguments chat/user_idtoCallbackContext` And Example On Custom Webhook Setups (#3059)
Add Convenience Property Message.id (#3077)
Add Example for WebApp (#3052)
Rename telegram.bot_api_version to telegram.__bot_api_version__ (#3030)

Move Examples To Documentation (#3089)
Documentation Improvements and Update Dependencies (#3010, #3007, #3012, #3067, #3081, #3082)
Improve Some Unit Tests (#3026)
Update Code Quality dependencies (#3070, #3032,#2998, #2999)
Don't Set Signal Handlers On Windows By Default (#3065)
Split {Command, Prefix}Handler And Make Attributes Immutable (#3045)
Apply isort and Update pre-commit.ci Configuration (#3049)
Adjust pre-commit Settings for isort (#3043)
Add Version Check to Examples (#3036)
Use Collection Instead of List and Tuple (#3025)
Remove Client-Side Parameter Validation (#3024)
Don't Pass Default Values of Optional Parameters to Telegram (#2978)
Stabilize Application.run_* on Python 3.7 (#3009)
Ignore Code Style Commits in git blame (#3003)
Adjust Tests to Changed API Behavior (#3002)