v1.19.1

What's Changed

Enhancements

• API: Support attaching signatures to standard and multisig transactions by @jdtzmn in #595
• AVM: Consolidate TEAL and AVM versions by @michaeldiamant in #609
• Testing: Use Dev mode network for cucumber tests by @algochoi in #614

Full Changelog: v1.19.0...v1.19.1