doc: Clean out release notes after 0.16.2

Tree-SHA512: fb7208356134322f3515c682ac7349eddb1ff54094abe397c94acb7e931b42265aca6b716eba072f79ebdb4a69ea87a5e40b6c4a48571db5b7b095ead45456ef

doc/release-notes.md

@@ -1,6 +1,6 @@
-Bitcoin Core version 0.16.2 is now available from:
+Bitcoin Core version 0.16.x is now available from:
 
-  <https://bitcoincore.org/bin/bitcoin-core-0.16.2/>
+  <https://bitcoincore.org/bin/bitcoin-core-0.16.x/>
 
 This is a new minor version release, with various bugfixes
 as well as updated translations.
@@ -46,71 +46,25 @@ the Linux kernel, macOS 10.8+, and Windows Vista and later. Windows XP is not su
 Bitcoin Core should also work on most other Unix-like systems but is not
 frequently tested on them.
 
-0.16.2 change log
+Notable changes
+===============
+
+(to be filled in)
+
+0.16.x change log
 ------------------
 
-### Wallet
-- #13622 `c04a4a5` Remove mapRequest tracking that just effects Qt display. (TheBlueMatt)
-- #12905 `cfc6f74` [rpcwallet] Clamp walletpassphrase value at 100M seconds (sdaftuar)
-- #13437 `ed82e71` wallet: Erase wtxOrderd wtx pointer on removeprunedfunds (MarcoFalke)
-
-### RPC and other APIs
-- #13451 `cbd2f70` rpc: expose CBlockIndex::nTx in getblock(header) (instagibbs)
-- #13507 `f7401c8` RPC: Fix parameter count check for importpubkey (kristapsk)
-- #13452 `6b9dc8c` rpc: have verifytxoutproof check the number of txns in proof structure (instagibbs)
-- #12837 `bf1f150` rpc: fix type mistmatch in `listreceivedbyaddress` (joemphilips)
-- #12743 `657dfc5` Fix csBestBlock/cvBlockChange waiting in rpc/mining (sipa)
-
-### GUI
-- #12432 `f78e7f6` [qt] send: Clear All also resets coin control options (Sjors)
-- #12617 `21dd512` gui: Show messages as text not html (laanwj)
-- #12793 `cf6feb7` qt: Avoid reseting on resetguisettigs=0 (MarcoFalke)
-
-### Build system
-- #13544 `9fd3e00` depends: Update Qt download url (fanquake)
-- #12573 `88d1a64` Fix compilation when compiler do not support `__builtin_clz*` (532479301)
-
-### Tests and QA
-- #13061 `170b309` Make tests pass after 2020 (bmwiedemann)
-- #13192 `79c4fff` [tests] Fixed intermittent failure in `p2p_sendheaders.py` (lmanners)
-- #13300 `d9c5630` qa: Initialize lockstack to prevent null pointer deref (MarcoFalke)
-- #13545 `e15e3a9` tests: Fix test case `streams_serializedata_xor` Remove Boost dependency. (practicalswift)
-- #13304 `cbdabef` qa: Fix `wallet_listreceivedby` race (MarcoFalke)
-
-### Miscellaneous
-- #12887 `2291774` Add newlines to end of log messages (jnewbery)
-- #12859 `18b0c69` Bugfix: Include <memory> for `std::unique_ptr` (luke-jr)
-- #13131 `ce8aa54` Add Windows shutdown handler (ken2812221)
-- #13652 `20461fc` rpc: Fix that CWallet::AbandonTransaction would leave the grandchildren, etc. active (Empact)
+(to be filled in)
 
 Credits
 =======
 
 Thanks to everyone who directly contributed to this release:
 
-- 532479301
-- Ben Woosley
-- Bernhard M. Wiedemann
-- Chun Kuan Lee
-- Cory Fields
-- fanquake
-- Gregory Sanders
-- joemphilips
-- John Newbery
-- Kristaps Kaupe
-- lmanners
-- Luke Dashjr
-- MarcoFalke
-- Matt Corallo
-- Pieter Wuille
-- practicalswift
-- Sjors Provoost
-- Suhas Daftuar
-- Wladimir J. van der Laan
+(to be filled in)
 
 And to those that reported security issues:
 
-- Braydon Fuller
-- Himanshu Mehta
+(to be filled in)
 
 As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).