Postgres-BDR is an open source project from 2ndQuadrant that provides multi-master features for PostgreSQL. We have pursued a joint strategy of providing both working code available now and also submitting the features into core PostgreSQL.
Postgres-BDR 1.0 runs on a variant distro of PG9.4. This is in Production now and receives regular maintenance and security updates. 2ndQuadrant will support this until 9.4 End of Life in December 2019.
One of the greatest achievements to come out of our work on BDR is the logical replication technology. Our engineers spent a considerable amount of energy to contribute the tech to PostgreSQL core and I feel especially proud that this is a headline feature of the upcoming PG10 release.
And Now BDR 2.0 …
BDR 2.0 runs on community PG9.6 as an extension. 2ndQuadrant is making this available now to Support customers only. BDR 2.0 allows our customers to upgrade to PostgreSQL 9.6 while we work on some new BDR features to be made available in version 3.0, which will be released as open source.
BDR 3.0 will be available by Q1 2018, maybe earlier. We will be working with our customers to prioritize feature content and it already looks exciting. We expect BDR3 to be the main future development path and will be supported from its release for 5 years.
We will be submitting further enhancements of performance and robustness to logical replication into PG11. These are all important infrastructure features that will pave the path for inclusion of multi-master replication in PostgreSQL core.
Multi-master functionality from BDR 3.0 will be submitted as core patches to PG12 in 2018, allowing us to work hard towards getting it full function multi-master into core for Production use by Sept 2019 onwards. At that point the project will have taken us 7 years to complete integration.