The activerecord-sqlserver-adapter gem is still sort of available via
gems.rubyonrails.org, but it will not install on machines that have
Rails 2.1 (or its version of ActiveSupport) installed. This has been
confirmed with versions of rubygems through 1.2.
This seems to indicate that Rails is no longer tested against the MSSQL
adapter and that the adapter is also no longer tested against Rails
since the move of the Rails core to Git. Is MSSQL still considered a
support target for RoR or has it been deprecated entirely? For all its
known bugs especially against SQL Server 2005, the MSSQL adapter at
least installed properly and still seemed to receive patches now and
then into the Rails 2.0.x era.
Are adapters for any of the commercial databases still actively
supported, or are mysql, postgres and sqlite the only databases any of
us should be using with AR in the future? Was the removal from the core
intended as a decoupling or a deprecation?