diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd6901eb4..78843bb6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,60 @@
 
 This document outlines major changes between releases.
 
+## 0.78.0 "Cardioacceleration" (15 September 2020)
+
+This version is a Neo 2.12.0-compatible release that follows DeFi-related
+network changes while also introducing some new RPC functionality and fixing
+bugs.
+
+There is an important configuration update there, please check FreeGasLimit,
+MaxFreeTransactionsPerBlock and MaxTransactionsPerBlock settings as they're
+now height-dependent (see the default mainnet and testnet configurations for
+example of how to configure them).
+
+If you're using getutxotransfer calls, please resynchronize your node to fix
+NEO values returned.
+
+New features:
+ * minimum network fee policy value can now be configured, but it defaults to
+   zero for now (#1397)
+ * stateroot import/export (#1307)
+ * new `getalltransfertx` RPC call returning all UTXO and NEP5 transactions
+   for specified account (parameters are the same as for `getnep5transfers`,
+   see RPC documentation for details, #1399, #1404)
+ * GetUTXOTransfers support was added to RPC client (#1399)
+
+Behavior changes:
+ * FreeGasLimit is now height-dependent (configured as a map, instead of
+   simple value), default value for mainnet since 6200000 and testnet since
+   4840000 is 50.0 (#1394, #1397, #1400, #1402)
+ * getnep5transfers and getutxotransfers RPC calls now support limiting and
+   paging in addition to time span selection, by default both only return a
+   1000 of elements (and it's the maximum possible) for a single call (#1395,
+   #1399)
+ * MaxTransactionsPerBlock and MaxFreeTransactionsPerBlock are
+   height-dependent now, the default values for mainnet and testnet change
+   since 6200000 and 4840000 respectively to 200 transactions per block with
+   199 free ones
+ * RPC client's GetNEP5Transfers call was updated to support new parameters
+   (#1399)
+
+Improvements:
+ * the project is now using proper YAML library import path (#1306)
+ * the node will exit with an error if no valid password is provided for CN
+   wallet (#1316)
+
+Bugs fixed:
+ * state root addition errors in CN logs (harmless, but annoying, #1313)
+ * state root was generated by CNs before StateRootEnableIndex (#1320)
+ * panic on consensus watcher node (#1314)
+ * RPC calls working with 256-bit hash parameters were not accepting hashes
+   with "0x" prefix (#1369)
+ * getutxotransfer RPC call returned NEO values multiplied by 10⁸ (#1386)
+ * incorrect vout indexes in getblock or getrawtransaction RPC outputs (#1392)
+ * network fee check was not accounting for LowPriorityThreshold correctly
+   (#1397)
+
 ## 0.77.0 "Cornification" (11 August 2020)
 
 This release is aligned with Neo 2.11.0 release, bringing important changes to