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The fact that LedgerSMB is open source  - meaning that the source code is freely available - makes it even more customizable and flexible.
Our Long Term Support version is 1.3. With over 45 patch releases with the initial release in October 2011, we consider this version highly stable.
Older versions are still available for download on SourceForge , but their use is highly discouraged both for security and data stability reasons. When using LedgerSMB versions 1.2 or earlier, it's encouraged to do so in a highly restricted network environment.
It's community policy to provide at least 36 months of community support for every 1.x release series. As such, there's no community support available for pre-1.3 LedgerSMB versions. However, some vendors are willing to provide support or migration services .
The project holds high quality standards that should be expected from business software regarding these topics in particular:
We achieve this goal by:
Some features currently under development and/or planned for future releases  of LedgerSMB:
LedgerSMB began in 2006 as a fork of the popular general ledger software package called SQL-Ledger  largely written and maintained by Dieter Simader since 1999. Versions 1.2 and earlier are largely based on SQL-Ledger's code. As of 1.3 our codebase is quickly moving away from what we inherited. Some of the improvements that we've made to the code base so far include:
Travel in our history with Internet Archive and WayBackMachine .