Bugfix release, for those who updated to 1.7 patch 1 on the Asset Store.
The release notes below includes the changes in 1.7 patch 1.
BUGFIX: sprites with custom geometry now trimmed correctly (trimming is correctly adjust to accommodate polys)
BUGFIX: bug (typo) in trimming code, was causing tall & thin sprites to be cropped.
BUGFIX: sprite switching code, avoid rebuilding mesh