Update changelog for v1.0.0-alpha.17 (#2751)

* Update changelog for v1.0.0-alpha.17 * Update release date Co-authored-by: Pili Guerra <[email protected]> * Additional suggested entries Co-authored-by: Pili Guerra <[email protected]> * Improve wording; mention recently merged PRs Co-authored-by: Pili Guerra <[email protected]>
ZcashFoundation · Sep 14, 2021 · e7cec3e · e7cec3e
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@@ -4,6 +4,34 @@ All notable changes to Zebra will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org).
 
+## [Zebra 1.0.0-alpha.17](https://github.com/ZcashFoundation/zebra/releases/tag/v1.0.0-alpha.17) - 2021-09-14
+
+Zebra's latest alpha continues work on the mempool.
+
+### Added
+
+- Monitor changes to the chain tip, decide if synchronization reached tip (#2695,
+  #2685, #2686, #2715, #2721, #2722)
+- Only enable the mempool crawler after synchronization reaches the chain tip (#2667)
+- Reply to requests for transactions IDs in the mempool (#2720)
+- Reply to requests for transactions in the mempool, given their IDs (#2725)
+- Download and verify gossiped transactions (#2679, #2727, #2718, #2741)
+- Internal additions and improvements to the mempool (#2742, #2747, #2749)
+
+#### Documentation
+
+- Document consensus rules for version group IDs (#2719)
+- Specify Zebra Client will only support Unified Addresses (#2706) 
+
+### Fixed
+
+-  Stop calculating transaction hashes twice in the checkpoint verifier (#2696) 
+
+### Security
+
+- Replace older duplicate queued checkpoint blocks with the latest block's data (#2697)
+
+
 ## [Zebra 1.0.0-alpha.16](https://github.com/ZcashFoundation/zebra/releases/tag/v1.0.0-alpha.16) - 2021-08-27
 
 Zebra's latest alpha finishes most of the state work needed for NU5 testnet activation and starts the mempool work.