Contents of Unsupported incompatibilities

Unsupported incompatibilities

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Here is a list of known incompatibilities with version 2 even when the |v2| option is loaded.

Automatic `shortening' of arrow tails by ??c![|«] break was a bug and has been `fixed' so it does not work any more. Put a |||<| break before it.
The version 2.6 ??c![*] position operator is not available. Use the |:| and |::| operators.
Using t₁|;| t₂| : (| x|,| y|)| as the target of an arrow command does not work. Enclose it in braces, , write

|| t₁|;| t₂|:(| x|,| y|)|
The older ??c![], ??c![], and ??c![] commands are not defined. Use |>| (or ||) with variants and rotation.
The even older notation where an argument in braces to || and the others was automatically taken to be a `tail' is not supported. Use the supported |||<|... notation.

If you do not use these features then your version 2 (and earlier) diagrams should typeset the same with this option loaded except that sometimes the spacing with version is slightly different from that of version 2.6 which had some spacing bugs.