bump up version to v2.8.0

Author: gmalouf

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+# v2.8.0
+
+<!-- Release notes generated using configuration in .github/release.yml at release/v2.8.0 -->
+
+## What's Changed
+### Enhancements
+* Blockheaders: Support for blockheaders call against Indexer API. by @gmalouf in https://github.com/algorand/py-algorand-sdk/pull/553
+* API: Support for header-only flag on /v2/block algod endpoint. by @gmalouf in https://github.com/algorand/py-algorand-sdk/pull/557
+
+## New Contributors
+* @dependabot made their first contribution in https://github.com/algorand/py-algorand-sdk/pull/535
+
+**Full Changelog**: https://github.com/algorand/py-algorand-sdk/compare/v2.7.0...v2.8.0
+
 # v2.7.0
 
 <!-- Release notes generated using configuration in .github/release.yml at release/v2.7.0 -->

setup.py

@@ -9,7 +9,7 @@
     description="Algorand SDK in Python",
     author="Algorand",
     author_email="pypiservice@algorand.com",
-    version="2.7.0",
+    version="2.8.0",
     long_description=long_description,
     long_description_content_type="text/markdown",
     url="https://github.com/algorand/py-algorand-sdk",