Bot Update version 1.19.2:
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- Minor fixes.

- Greek language support.

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Setup Greek language using following command in your group:
/language el

Bot Update version 1.20.1:
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- Fixed new user joins in large groups (>10k) not being detected due new Telegram Bot API v5.2 changes.

- Updated Bot code to support Telegram Bot API V5.2 features.

- Some minor changes in code structure for mantenibility.

- Some languages texts translations modified.

Bot Update version 1.21.0:
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New Captcha Mode: Resolve a basic math equation to prove that you are a human!

Captcha: 92+35
Resolution: 127

Configure a group and check this new mode with /captcha_mode command:

/captcha_mode math

Bot Update v1.21.2:
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- Detect user bad response message with "NNNN" or "NN+NN" or "NN-NN" format when Bot is configured for math captcha, and notify the user is wrong ("That is not the correct number. Check closely, you need to solve the math equation...").

- Internal generated captcha image file store with chat ID directories to be completly sure that the file has UID name and didn't exists.

- Updated German language texts, thanks to @MossDerg.

- Updated Rusian language texts, thanks to @stezkoy.

Bot update 1.21.3
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- Trying to get back lost feature: detect and remove "User joined the group" message when user is kicked/banned.

- Time for auto-delete messages sent by Bot changed from 5 mins to 1 min.

Bot Update v1.22.0:
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- New Captcha Mode: Random. With this captcha mode, the Bot will send a random captcha from different modes ("nums", "math" or "poll"). To set this new mode, use command "/captcha_mode random" in a group. If Poll captcha is not totally configured (question and answers), it won't be used and just "nums" or "math" captchas will be send.

- Captcha Solve Time value allow to be configured in seconds or minutes. Before this update, the time just can be configured from 1 min to 20 min, now it can be configured for any value from 10 sec to 10 min. Check command "/time" to check the new command config format (i.e. use "/time 30 sec" for 30 seconds, or "/time 5 min" for 5 minutes). If no "sec" or "min" argument is specified, it will use "min" by default (just like it was before the update).

- Belarusian language support, thanks to @antikruk. Use command "/language be" in a group to make Bot speaks in this new language.

Did you find some Bug or want to request for a new feature?
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You can use GitHub and create an issue on it:

https://github.com/J-Rios/TLG_JoinCaptchaBot/issues

Bot Update v1.23.0:
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- New Fonts and styles in Image Captchas!

- Support to configure groups from private chat Bot conversation (DM - Direct Messages; PM - Private Messages). Check new commands /connect and /disconnect from private Bot conversation.

- New command /checkcfg to show current group captcha settings.

- Now just Admins can use commands in a group (commands send by other users will not get any response).

Basic Bot Setup
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If you are not yet familiar with Telegram Bots, and don't know how to add and setup JoinCaptchaBot in your group. Here it is a basic setup guide:

https://www.buymeacoffee.com/joincaptchabot/how-to-add-setup-bot-groups

Bot Update v1.24.0:
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- Allow/Deny messages with links to websites (URLs) in a group. Use the new commands /url_disable and /url_enable to configure it (default is enable-allow).

- Removed some complex fonts from captcha images and added new readable ones.

- Save RAM data when Bot shutdown and restore it when it turns on again (to keep persistent functionality if Bot is restarted).

- Some Italian, Russian, Ukrainian and Arabic texts updated-translated.

- Persian language support added (use "/language fa" to use it).

Bot Update v1.25.0:
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- New commands /remove_all_msg_kick_on and /remove_all_msg_kick_off to configure Bot to remove all messages sent by an user that didn't solve a captcha. Default is off, and that means text messages remains after user is kicked without solving the captcha, turn it on to also remvoe this messages.

- Timeout for auto-remove Bot messages handled in seconds (instead minutes) and time to auto-remove some messages reduced to 20 seconds (now captcha solve and kick messages are automatically deleted in 20s).

Bot Update v1.25.1:
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- Fix to allow new commands /url_disable, /url_enable, /remove_all_msg_kick_off and /remove_all_msg_kick_on to also be configured from private chat with /connection to group.

Bot Update v1.25.2:
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- Updated (translated) some Brazilian, Ukrainian, Russian and Belarusian languages texts, thanks to external contributors.

New Paypal Donation Platform, Ko-Fi!
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A couple of months ago, Buymeacoffee platform stops supporting Paypal as donation payment method, and now it only supports credit card donations.

I have check for an alternative platform to bring back the Paypal option, and I have found that Ko-Fi platform fits this need. So now, if you want to make a donation to get @pro_join_captcha_bot usage on your groups you have two options:

1. Use BuyMeACoffee and make the donation with a credit card following this instructions:
https://www.buymeacoffee.com/joincaptchabot/joincaptchabot-large-groups

2. Use Ko-Fi and make the donation with Paypal following this instructions:
https://ko-fi.com/post/JoinCaptchaBot-for-large-groups-V7V3ANADF

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BuyMeACoffee platform:
https://www.buymeacoffee.com/joincaptchabot

The new Ko-Fi platform:
https://ko-fi.com/joincaptchabot

Bot Update v1.25.3:
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Small update with new Bot languages:

- Added Finish language support.
/language fi

- Added Hebrew language support.
/language he

Bot Update v1.26.0:
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🚀 New features:

- Now you can configure welcome message automatic deletion time through /welcome_msg_time command.

Examples:

Delete welcome message after 30 seconds:
/welcome_msg_time 30 sec

Delete welcome message after 5 minutes:
/welcome_msg_time 5 min

Delete welcome message after 1 minute:
/welcome_msg_time 1 min

⚙️ Improvements:

- Python Telegram Bot framework updated to v13.12 to support last Bot API v6.

🛠 Fixes:

- Fix for /cmd_remove_all_msg_kick_on not removing messages on button and poll captcha modes.

- Kick users by unban_chat_member request instead ban+unban to avoid some issue on Bot not unrestricting users when kicks.

Bot Update v1.26.1:
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⚙️ Improvements:

- Some German language texts translated.

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🛠 Fixes:

- Fix bug that allows users to solve "math" mode captchas without implicit writing the equation result.

Bot Update v1.26.4:
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⚙️ Improvements:

- Ignore URL protection for channel post redirection messages to configured channel discussion group.

🛠 Fixes:

- Fix some markdown escaping problem on welcome messages.

- Fix to recover the detection and removal of messages forwarded by "users" who have not completed the captcha (considered as Spam).