Rebus versions

For historical reasons, there's something called "Rebus 1" (which is NuGet package versions <= 0.84.0), and there's something called "Rebus 2" (which is NuGet package versions >= 0.90.0).

"Rebus 1" and "Rebus 2" are NOT wire-compatible. "Rebus 2" is wire-compatible with all subsequent versions though, so if you're using NuGet package version 5, your endpoint can also communicate with endpoints of versions 4, 3, and 2(*).

Here's a table that gives an overview of the version history so far.

NuGet package version	Comment	Release date
0.9.1-alpha	First version	2012-02-25
...
0.16.0	First non-pre	2012-08-20
...
0.84.0	Last Rebus 1	2015-05-15
0.90.0	First Rebus 2	2015-07-29
...
2.0.1		2016-09-20
...
3.0.0		2017-01-04
...
4.0.0		2017-08-15
...
5.0.0		2018-10-08
...
6.0.0		2020-01-31
...

Check out Rebus on NuGet.org for information about the most recently released versions.

The changelog has information about which features/changes were made in each version.

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(*) There's a caveat to this rule though: While all Rebus 2 versions use the same wire-level format (which is mostly about how message headers are used), each particular TRANSPORT might still impose some breaking changes. Most of them don't, but e.g. the SQL Transport has seen a breaking change from version 4 to 5, because it went from a single-table layout to a table-per-queue layout.