[Meta-issue] Considering deprecation of several features in FORM #627

We are considering deprecating several features in FORM due to maintenance difficulties, limited human resources and a lack of known active users.

Each feature under consideration has its own dedicated issue. If you use any of these features and want support to continue, please comment on the respective issue.

• Considering deprecating native Windows version of FORM #623
• Considering deprecating the 32-bit system version of FORM #624
• Considering deprecating ParFORM #625
• Considering deprecating the checkpoint mechanism #626

Users using these features will see a deprecation warning. To suppress the warning, use the -ignore-deprecation command line option or set the environment variable FORM_IGNORE_DEPRECATION=1.