Pirates of the Burning Sea was updated to build 22.214.171.124, but build 126.96.36.199 has already gone live. This revision includes the planned changes to Ships of the Line, bringing them closer to how they were originally intended to be.
Also in 188.8.131.52, swashbuckling has been tuned quite a lot, and some new voice acting from foreign speakers has gone in. The invisible avatar problem hasn't been fully resolved yet, but we're promised some more progress when the next patch is released.
Once again, this is but a small portion of all the changes in the patch, and the full list is pasted after the break.