Author: mariuz

Mark Rotteveel wrote on twitter :
Tested migration of Jaybird repository from sourceforge to github. Mapping users has some issues, but next week I will make the move.

The Lazarus team is glad to announce the release of Lazarus 1.4.

Read More:
http://forum.lazarus.freepascal.org/index.php/topic,28126.0.html

SQLAlchemy release 1.0.1 is now available.

This is a quick bug-fix release that repairs several new regressions identified in the 1.0.0 release, not found during the beta period. All users of 1.0.0 are encouraged to upgrade to 1.0.1.

New release with a small fix : Quote Firebird 2.1 reserved keywords.

https://rubygems.org/gems/activerecord-fb-adapter/versions/1.0.1

Support for Rails 4.2 landed in version 1.0

https://rubygems.org/gems/activerecord-fb-adapter/versions/1.0.0

The FBClone code has been moved to github

FDB Python driver for Firebird v1.4.5 is available for download. This is
pure bugfix release. Solves problems with memory and db resource leaks
caused by Python GC due to circular references.

https://pypi.python.org/pypi/fdb

Warning : there are some issues with django in this release (reported by Maximiliano Robaina)

If you have Firebird related open source project please migrate to github.

Linear regression functions added in Firebird 3.0 :

REGR_AVGX(Y, X) = SUM(X) / N
REGR_AVGY(Y, X) = SUM(Y) / N
REGR_COUNT(Y, X) = N
REGR_INTERCEPT(Y, X) = REGR_AVGY(Y, X) – REGR_SLOPE(Y, X) * REGR_AVG_X(Y, X)
REGR_R2(Y, X) = POWER(CORR(Y, X),2)
REGR_SLOPE(Y, X) = COVAR_POP(Y, X)
REGR_SXX(Y, X) = N * VAR_POP(X)
REGR_SXY(Y, X) = N * COVAR_POP(Y, X)
REGR_SYY(Y, X) = N * VAR_POP(Y)

Contributed by Hajime Nakagami.

Github pull request: https://github.com/FirebirdSQL/core/pull/4