Looks like we end up with the following changes:
1a43566306cb8cebad8cae85c67b15b3c254f316 - Prevent Recursive BuildRequestBody
debc1adf8e41fb5c5b7e2021a1be0b4d0c78318a - Networking v2: Create Floating IP with Subnet
1db95d798aa72ec12a6e60e40749cea56073d2fb - Compute v2: Add unit tests for Ephemeral field
0b8b348f5ad19aa4513ad9f8ad24f766a6623ad9 - compute: flavors: add Ephemeral attribute
8a6dfa8264e8b64523272c7a205e5f08bb6c118f - Compute v2: Flavor Access Remove (#688)
35ab3f13f69349f99ba8b9c9c36a7031ae2963dd - Flavor Extra Spec Update
800a4c0d57fbe8403b0bb6f13a8340c8fc990ad5 - Flavor Extra Spec Delete
be3fd7845c1928cbc5bbe289f2e39f5dec2e7278 - Flavor Extra Specs Create
c2cafb46bb409768f420742757949fd05fb1d704 - Flavor Extra Specs: List / Get (#686)
7b1b87753c31d4900587840774a019bbfa770698 - Compute v2: Flavor Access Add (#687)
1a43566306cb8cebad8cae85c67b15b3c254f316 - Prevent Recursive BuildRequestBody
debc1adf8e41fb5c5b7e2021a1be0b4d0c78318a - Networking v2: Create Floating IP with Subnet

The full set of changes between the old and new SHA are here:
https://github.com/gophercloud/gophercloud/compare/8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97...6da026c32e2d622cc242d32984259c77237aefe1