Security

• Sanitize paragraph and text tokens #1504
• Fix ReDOS for links with backticks (issue #1493) #1515

Breaking Changes

• Deprecate sanitize and sanitizer options #1504
• Move fences to CommonMark #1511
• Move tables to GFM #1511
• Remove tables option #1511
• Single backtick in link text needs to be escaped #1515

Fixes

• Fix parentheses around a link #1509
• Fix headings (issue #1510) #1511

Tests

• Run tests with correct options #1511