Sonar v2.1.48

Sonar is a lightweight and effective anti-bot plugin for Velocity, BungeeCord, and Bukkit.
  • Clear ByteBuf if the packet has no start
  • Fix invalid-username never being used
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
This is a hotfix release that removes an accidental debugging statement that caused all errors to be printed out to console in full detail.

Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
  • Move username check to post-login
  • Fix pre-join disconnects not encoding correctly
  • Make unsupported version message configurable
  • Update language/config files for Chinese #404
  • Add client ticking check for 1.21.2+
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
  • Don't serialize modern json twice
  • Fix NoClassDefFoundError on BungeeCord and Bukkit
This is a hotfix release that resolves an exception on startup introduced by #401
  • Fix timestamp check false positive
  • Fix component serialization on <1.16 #401
This release fixes gradients being parsed incorrectly for Minecraft 1.15.2 and below.
Additionally, random disconnects during the CAPTCHA have been fixed.
  • 1.21.2 Support #370, #397
  • Make verification world time configurable
  • Exempt Bedrock players from the vehicle check
  • Exempt Bedrock players from the view distance check
  • Remove useless variables from some events
  • Fix UpdateTime packet on 1.21.2
  • Fix CAPTCHA Y position breaking lighting
  • Fix errors during configuration phase
  • Use hashes for command tab completion
  • Don't print permission message if empty
Some false positives and timeouts related to lag have been fixed.
There've been some more microoptimizations that are not listed.
  • Remove VerifiedPlayerController#estimatedSize
  • Add easier API method for verifying players
  • Add more stability checks to the database
  • Implement missing view distance check
  • Fix translation error in Spanish translations
  • Tell user how to disable the welcome message
  • Fix possible position issue with vehicles
  • Fix block heights varying on different versions
  • Use one entity ID for all vehicles
  • Fix the Discord link in Polish translations
  • Add verification welcome message
  • Small micro-optimizations to networking
  • Fix potential NullPointerException
  • Bump dependencies #386
EULA: Free EULA
18,898 Views
463 Downloads
Mar 30, 2022 Published
Jun 20, 2026 Updated
5.00 star(s)
Average rating (10)
4.7 MB File size
Open source
  1. Yes
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Protection
  1. Patch
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Bungee
  1. Folia
  1. Velocity
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
  1. 1.19
  1. 1.18
  1. 1.17
  1. 1.16
  1. 1.15
  1. 1.14
  1. 1.13
  1. 1.12
  1. 1.11
  1. 1.10
  1. 1.9
  1. 1.8
  1. 1.7
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Indonesian
  1. Italian
  1. Dutch
  1. Czech
Includes DRM
No
Source access (legacy)
Open source
Crediting original
https://github.com/jonesdevelopment/sonar/contributors
Creator
Owner
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18,898 Views
463 Downloads
Mar 30, 2022 Published
Jun 20, 2026 Updated
5.00 star(s)
Average rating (10)
4.7 MB File size
Open source
  1. Yes
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Protection
  1. Patch
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Bungee
  1. Folia
  1. Velocity
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
  1. 1.19
  1. 1.18
  1. 1.17
  1. 1.16
  1. 1.15
  1. 1.14
  1. 1.13
  1. 1.12
  1. 1.11
  1. 1.10
  1. 1.9
  1. 1.8
  1. 1.7
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Indonesian
  1. Italian
  1. Dutch
  1. Czech
Includes DRM
No
Source access (legacy)
Open source
Crediting original
https://github.com/jonesdevelopment/sonar/contributors
Creator
Owner
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5.00 star(s) 53 ratings
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Protect your server from crash/dupe/packet exploits with the ultimate security fix plugin.
5.00 star(s) 44 ratings
3,086 purchases
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