Technical notes on / version 1.2

• Introduction
• Why can't I use abbreviations for the equation environment?
• The upref package
• The amsintx package
• Deprecated and disallowed commands
• Hyphenation in the documentation
• Why did matrix, pmatrix, and cases stop working when I added the amsmath package?
• Why did over, atop, above [...withdelims] stop working when I added the amsmath package?