Known issue. Will include Ruby 2.6 for Windows builds in the next release.

Thanks. Is there any timeline for next release ?

+1 any estimate? as I am in the middle of planning/executing an upgrade

Is there any further updates to this or any known workaround in order to have this working in Windows 10 (64Bit) ?
λ gem install mysql2
ERROR: Error installing mysql2:
The last version of mysql2 (>= 0) to support your Ruby & RubyGems was 0.5.2. Try installing it with gem install mysql2 -v 0.5.2
mysql2 requires Ruby version >= 2.0, < 2.6. The current ruby version is 2.6.1.33.

any update on this?

Also having this problem.

gem install mysql2 -v 0.5.2
ERROR: Error installing mysql2:
The last version of mysql2 (= 0.5.2) to support your Ruby & RubyGems was 0.5.2. Try installing it with gem install mysql2 -v 0.5.2
mysql2 requires Ruby version >= 2.0, < 2.6. The current ruby version is 2.6.1.33.

Known issue. Will include Ruby 2.6 for Windows builds in the next release.

when is the next release?

λ gem install mysql2 -v 0.5.2

ERROR:  Error installing mysql2:
        The last version of mysql2 (= 0.5.2) to support your Ruby & RubyGems was 0.5.2.
        Try installing it with `gem install mysql2 -v 0.5.2`
        mysql2 requires Ruby version >= 2.0, < 2.6. The current ruby version is 2.6.3.62.

When is the next release come?

Environment

• Windows 10
• Ruby 2.6.3p62
• MySQL 8.0.16

I'm also very interested in the timeline on this release.

I'm also keenly interested in the resolution of this incompatibility with Ruby 2.6; our test automation framework is effectively locked into a deprecated version of Ruby (2.3) until mysql2 is updated.

Does anyone know when is the next release?

Any furthur news about this?

λ gem install mysql2 -v 0.5.2

ERROR:  Error installing mysql2:
        The last version of mysql2 (= 0.5.2) to support your Ruby & RubyGems was 0.5.2.
        Try installing it with `gem install mysql2 -v 0.5.2`
        mysql2 requires Ruby version >= 2.0, < 2.6. The current ruby version is 2.6.3.62.

When is the next release come?

Environment

• Windows 10
• Ruby 2.6.3p62
• MySQL 8.0.16

I met the same problem.

...when I cut the release. Sorry for the ambiguity and delay, gotta make time for this.

Please create a fix or a suggest a workaround at the earliest.

Workaround: manually download the .gem file then install it:

gem i mysql2-0.5.2.gem
Temporarily enhancing PATH for MSYS/MINGW...
Installing required msys2 packages: mingw-w64-x86_64-libmariadbclient
Building native extensions. This could take a while...
Successfully installed mysql2-0.5.2
Parsing documentation for mysql2-0.5.2
Installing ri documentation for mysql2-0.5.2
Done installing documentation for mysql2 after 1 seconds
1 gem installed

This issue might be caused by releasing multiple 0.5.2 packages, but I don't know how to fix it either.

Hi @sodabrew 👋🏼. First, thank you for all the work needed to maintain and release mysql2.

Rails master (6.1.alpha) recently updated it's Gemfile to require "mysql2", "~> 0.5" (rails/rails#37191). This has become an issue because bundler enforces the windows < 2.6 Ruby version requirement even when the current platform is not Windows. This means that running bundle update with a checked out copy of Rails master fails. (See rails/rails#37224)

This also affects us at GitHub because we experience this failure as part of our update process for testing against Rails master. Although there are some short-term workarounds, this issue is preventing our update processes from working correctly.

Anything you might be able to do to expedite this update and increase the windows ruby version requirement would be greatly appreciated at GitHub and, I'm sure, by the Rails community as a whole. Thanks!

We also can't get our rails 6 project working without the proper fix released.

Hi @sodabrew, If you have no time for the new release maybe Rails developers team should pick this up? The plug-in actually important for Rails 6 and mysql compatibility. Many people are using mysql. It is actually baffling why such plugins are actually not part of Rails. Rails require databases to run, strange approach to be honest.

Awaiting a solution

Awaiting a solution...

Anything?

Workaround: manually download the .gem file then install it:

gem i mysql2-0.5.2.gem
Temporarily enhancing PATH for MSYS/MINGW...
Installing required msys2 packages: mingw-w64-x86_64-libmariadbclient
Building native extensions. This could take a while...
Successfully installed mysql2-0.5.2
Parsing documentation for mysql2-0.5.2
Installing ri documentation for mysql2-0.5.2
Done installing documentation for mysql2 after 1 seconds
1 gem installed

This issue might be caused by releasing multiple 0.5.2 packages, but I don't know how to fix it either.

So I downloaded the gem manually and installed it...and then when I ran bundle install, it complained once again that mysql2 v0.5.2 was not compatible with Ruby 2.6.x

C:\Users\Foo\GitHub\Bar>gem i c:\users\Foo\Downloads\mysql2-0.5.2.gem
Temporarily enhancing PATH for MSYS/MINGW...
Installing required msys2 packages: mingw-w64-x86_64-libmariadbclient
Building native extensions. This could take a while...
Successfully installed mysql2-0.5.2
Parsing documentation for mysql2-0.5.2
Installing ri documentation for mysql2-0.5.2
Done installing documentation for mysql2 after 1 seconds
1 gem installed

C:\Users\Foo\GitHub\Bar>bundle install
Fetching gem metadata from https://rubygems.org/...
mysql2-0.5.2-x64-mingw32 requires ruby version < 2.6, which is incompatible with
the current version, ruby 2.6.5p114

I looked through the bundle documentation and I didn't see a way to request that bundle install ignore the mysql2 gem as it's already installed. Ideas?

--
Edited to add: For now, I've downgraded my installed ruby to 2.5.7.

FYI to any Windows-based developers out there: because of this issue, I'm trying out uru to switch between installed ruby versions. I installed uru using the scoop method -- and installed ruby versions using scoop (tip: the dash at the end is essential when specifying a ruby version to install:

scoop install ruby@2.5.7-1
rem I left out the `ridk install` step here because I already had done that previously
uru admin add 'C:\users\Foo\scoop\apps\ruby\2.5.7-1\bin'

https://rubygems.org/gems/mysql2 0.5.3 is now posted with updated Windows pre-built binaries for Ruby 2.2 - 2.6.

https://rubygems.org/gems/mysql2 0.5.3 is now posted with updated Windows pre-built binaries for Ruby 2.2 - 2.6.

sodabrew - newbie here- what exactly do I do to access https://rubygems.org/gems/mysql2 0.5.3?

https://rubygems.org/gems/mysql2 0.5.3 is now posted with updated Windows pre-built binaries for Ruby 2.2 - 2.6.

sodabrew - newbie here- what exactly do I do to access https://rubygems.org/gems/mysql2 0.5.3?

Please disregard. I had a "d'uh" moment! I fixed it.

Hello,
I'm newbie in ruby, I tried to install Redmine on W10 but I have this:

C:\redmine-4.1.1>gem install mysql2 -v 0.5.3
ERROR: Error installing mysql2:
The last version of mysql2 (= 0.5.3) to support your Ruby & RubyGems was 0.5.3. Try installing it with gem install mysql2 -v 0.5.3 mysql2 requires Ruby version >= 2.2, < 2.7.dev. The current ruby version is 2.7.2.137.

It seems that the new version of mysql2 (0.5.3) donc really work with ruby v2.7

RubyGems Environment:

• RUBYGEMS VERSION: 3.1.4
• RUBY VERSION: 2.7.2 (2020-10-01 patchlevel 137) [x64-mingw32]
• INSTALLATION DIRECTORY: C:/Ruby27-x64/lib/ruby/gems/2.7.0
• USER INSTALLATION DIRECTORY: C:/Users/podor/.gem/ruby/2.7.0
• RUBY EXECUTABLE: C:/Ruby27-x64/bin/ruby.exe
• GIT EXECUTABLE:
• EXECUTABLE DIRECTORY: C:/Ruby27-x64/bin
• SPEC CACHE DIRECTORY: C:/Users/podor/.gem/specs
• SYSTEM CONFIGURATION DIRECTORY: C:/ProgramData
• RUBYGEMS PLATFORMS:
  • ruby
  • x64-mingw32
• GEM PATHS:
  • C:/Ruby27-x64/lib/ruby/gems/2.7.0
  • C:/Users/podor/.gem/ruby/2.7.0
• GEM CONFIGURATION:
  • :update_sources => true
  • :verbose => true
  • :backtrace => false
  • :bulk_threshold => 1000
• REMOTE SOURCES:
  • https://rubygems.org/
• SHELL PATH:
  • C:\Windows\system32
  • C:\Windows
  • C:\Windows\System32\Wbem
  • C:\Windows\System32\WindowsPowerShell\v1.0\
  • C:\Windows\System32\OpenSSH\
  • C:\Ruby27-x64\bin
  • C:\Users\podor\AppData\Local\Microsoft\WindowsApps