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Agrarian Core version *3.3.0* is now available from: <https://github.com/agrarian-project/agrarian/releases>
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This is a new major version release, including various bug fixes and performance improvements, as well as updated translations.
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Please report bugs using the issue tracker at github: <https://github.com/agrarian-project/agrarian/issues>
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Mandatory Update
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==============
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Agrarian Core v3.3.0 is a mandatory update for all users. This release contains new consensus rules and improvements that are not backwards compatible with older versions. Users will have a grace period of approximately one week to update their clients before enforcement of this update goes into effect.
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Masternodes will need to be restarted once both the masternode daemon and the controller wallet have been upgraded.
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How to Upgrade
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==============
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If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows) or just copy over /Applications/Agrarian-Qt (on Mac) or agrariand/agrarian-qt (on Linux).
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Compatibility
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==============
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Agrarian Core is extensively tested on multiple operating systems using the Linux kernel, macOS 10.10+, and Windows 7 and later.
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Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support), No attempt is made to prevent installing or running the software on Windows XP, you can still do so at your own risk but be aware that there are known instabilities and issues. Please do not report issues about Windows XP to the issue tracker.
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Apple released it's last Mountain Lion update August 13, 2015, and officially ended support on [December 14, 2015](http://news.fnal.gov/2015/10/mac-os-x-mountain-lion-10-8-end-of-life-december-14/). Agrarian Core software starting with v3.2.0 will no longer run on MacOS versions prior to Yosemite (10.10). Please do not report issues about MacOS versions prior to Yosemite to the issue tracker.
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Agrarian Core should also work on most other Unix-like systems but is not frequently tested on them.
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Notable Changes
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==============
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## zAGR Public Spends
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Recent exploits of the Zerocoin protocol (Wrapped serials and broken P1 proof) required us to enable the zerocoin spork and deactivate zAGR functionality in order to secure the supply until the pertinent review process was completed.
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Moving forward from this undesired situation, we are enabling a secure and chain storage friendly solution for the zerocoin public spend (aka zAGR to AGR conversion).
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The explanation of how this works can be found in #891
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After block `1,880,000` has past, `SPORK_16` will be deactivated to allow zAGR spends to occur using this new public spend method for version 2 zAGR (version 1 zAGR won't be spendable, see note below). zAGR public spends, as the name suggests, are **NOT** private, they reveal the input mint that is being spent. The minting of **NEW** zAGR, as well as zAGR staking will remain disabled for the time being.
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It is advised that users spend/convert their existing zAGR to AGR, which can be done via the GUI or RPC as it was prior to the disabling of zAGR. Note that with the public spend method, the restriction on the number of denominations per transaction (previously 7) has been lifted, and now allows for several hundred denominations per transaction.
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*Note on version 1 zAGR*: Version 1 zAGR was only available to me minted between versions v3.0.0 (Oct 6, 2017) and v3.1.0 (May 8, 2018). The announcement that version 1 zAGR was deprecated went out on May 1, 2018 with a recommendation for users to spend/convert their version 1 zAGR.
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Version 1 zAGR will be made spendable at a later date due to the extra work required in order to make these version 1 mints spendable.
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## GUI Changes
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### Options Dialog Cleanup
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The options/settings UI dialog has been cleaned up to no longer show settings that are wallet related when running in "disable wallet" (`-disablewallet`) mode.
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### Privacy Tab
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Notice text has been added to the privacy tab indicating that zAGR minting is disabled, as well as the removal of UI elements that supported such functionality. Notice text has also been added indicating that zAGR spends are currently **NOT** private.
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## RPC Changes
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### Removal of Deprecated Commands
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The `masternode` and `mnbudget` RPC commands, which were marked as deprecated in Agrarian Core v2.3.1 (September 19, 2017), have now been completely removed from Agrarian Core.
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Several new commands were added in v2.3.1 to replace the two aforementioned commands, reference the [v2.3.1 Release Notes](https://github.com/Agrarian-Project/Agrarian/blob/master/doc/release-notes/release-notes-2.3.1.md#rpc-changes) for further details.
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### New `getblockindexstats` Command
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A new RPC command (`getblockindexstats`) has been introduced which serves the purpose of obtaining statistical information on a range of blocks. The information returned is as follows:
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* transaction count (not including coinbase/coinstake txes)
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* transaction count (including coinbase/coinstake txes)
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* zAGR per-denom mint count
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* zAGR per-denom spend count
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* total transaction bytes
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* total fees in block range
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* average fee per kB
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Command Reference:
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```$xslt
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getblockindexstats height range ( fFeeOnly )
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nReturns aggregated BlockIndex data for blocks
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height, height+1, height+2, ..., height+range-1]
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nArguments:
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1. height (numeric, required) block height where the search starts.
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2. range (numeric, required) number of blocks to include.
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3. fFeeOnly (boolean, optional, default=False) return only fee info.
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```
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Result:
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```
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{
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first_block: x, (integer) First counted block
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last_block: x, (integer) Last counted block
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txcount: xxxxx, (numeric) tx count (excluding coinbase/coinstake)
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txcount_all: xxxxx, (numeric) tx count (including coinbase/coinstake)
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mintcount: { [if fFeeOnly=False]
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denom_1: xxxx, (numeric) number of mints of denom_1 occurred over the block range
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denom_5: xxxx, (numeric) number of mints of denom_5 occurred over the block range
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... ... number of mints of other denominations: ..., 10, 50, 100, 500, 1000, 5000
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},
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spendcount: { [if fFeeOnly=False]
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denom_1: xxxx, (numeric) number of spends of denom_1 occurred over the block range
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denom_5: xxxx, (numeric) number of spends of denom_5 occurred over the block range
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... ... number of spends of other denominations: ..., 10, 50, 100, 500, 1000, 5000
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},
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pubspendcount: { [if fFeeOnly=False]
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denom_1: xxxx, (numeric) number of PUBLIC spends of denom_1 occurred over the block range
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denom_5: xxxx, (numeric) number of PUBLIC spends of denom_5 occurred over the block range
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... ... number of PUBLIC spends of other denominations: ..., 10, 50, 100, 500, 1000, 5000
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},
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txbytes: xxxxx, (numeric) Sum of the size of all txes (zAGR excluded) over block range
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ttlfee: xxxxx, (numeric) Sum of the fee amount of all txes (zAGR mints excluded) over block range
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ttlfee_all: xxxxx, (numeric) Sum of the fee amount of all txes (zAGR mints included) over block range
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feeperkb: xxxxx, (numeric) Average fee per kb (excluding zc txes)
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}
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```
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## Build System Changes
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### New Architectures for Depends
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The depends system has new added support for the `s390x` and `ppc64el` architectures. This is done in order to support the future integration with [Snapcraft](https://www.snapcraft.io), as well as to support any developers who may use systems based on such architectures.
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### Basic CMake Support
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While the existing Autotools based build system is our standard build system, and will continue to be so, we have added basic support for compiling with CMake on macOS and linux systems.
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This is intended to be used in conjunction with IDEs like CLion (which relies heavily on CMake) in order to streamline the development process. Developers can now use, for example, CLion's internal debugger and profiling tools.
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Note that it is still required to have relevant dependencies installed on the system for this to function properly.
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*3.3.0* Change log
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==============
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Detailed release notes follow. This overview includes changes that affect behavior, not code moves, refactors and string updates. For convenience in locating the code changes and accompanying discussion, both the pull request and git merge commit are mentioned.
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### Core
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- #875 `a99c2dd3bb` [Zerocoin] GMP BigNum: Fix limits for random number generators (random-zebra)
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- #888 `0c071c3fd0` [Zerocoin] remove CTransaction::IsZerocoinSpend/IsZerocoinMint (random-zebra)
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- #891 `855408c2c3` [ZAGR] Zerocoin public coin spend. (furszy)
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- #897 `65bd788945` [zAGR] Disable zerocoin minting (random-zebra)
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- #899 `4b22a09024` [zAGR] Disable zAGR staking (random-zebra)
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- #909 `458b08c8f2` [Consensus] Mainnet public spend enforcement height set. (furszy)
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- #924 `988b33dab8` [Backport] Max tip age to consider a node in IBD status customizable. (furszy)
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- #925 `a9827a0e63` [Consensus] Time checks (warrows)
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### Build System
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- #810 `a373fee908` [Depends] Fix archs (fixes s390x and ppc64el builds on snap) (cevap)
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- #906 `8a47747b59` [Build] Add CMake Support (Fuzzbawls)
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- #910 `07c8fb8f88` [Build] Clean all coverage files during make clean (Fuzzbawls)
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- #913 `473976c619` [Depends] Update from upstream (Fuzzbawls)
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- #914 `5a43ea790a` [Gitian] Bump gitian build versions (Fuzzbawls)
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- #917 `b38ef04838` [Build] TravisCI Update (Fuzzbawls)
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- #922 `0f98fd4d3f` [Build] Fix app name casing in mac deploy related files (Fuzzbawls)
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### P2P Protocol and Network Code
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- #908 `95b584effd` [NET] Non-running dns servers removed from chainParams. (furszy)
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- #929 `7e8855d910` [Net] Update hard-coded seeds (Fuzzbawls)
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- #930 `5061b486c2` [Net] Add a couple new testnet checkpoints (Fuzzbawls)
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### GUI
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- #874 `23f17ce021` [Qt] Add new budget colors (warrows)
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- #895 `0417d52ef9` [QT] Options UI cleanup (Alko89)
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- #896 `b2fcefee93` [UI] Simplify Qt margins. (warrows)
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- #898 `3d496cc746` [Qt] Fixup duplicate label names (Fuzzbawls)
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- #900 `5f7559bc7b` [UI] Fix improperly parented walletView and segmentation fault on QT 5.10 (Julian Meyer)
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- #928 `2482572f89` [Qt] Update Translations (Fuzzbawls)
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### RPC/REST
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- #877 `54c8832d80` [RPC] Remove deprecated masternode/budget RPC commands (Fuzzbawls)
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- #901 `be3aab4a00` [RPC] Fix typos and oversights in listunspent (CaveSpectre11)
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- #911 `484c070b22` [RPC] add 'getblockindexstats' function (random-zebra)
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### Wallet
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- #813 `80bf51e7c9` [Refactoring] [Move Only] Move wallet files into their own folder (warrows)
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- #916 `a4f02ed946` [Staking] Don't assert if we were beaten to the block (CaveSpectre11)
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### Unit Tests
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- #806 `fc6b5a191d` [Test] Create new per-test fixtures (Wladimir J. van der Laan)
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- #902 `8adeeb9727` [Tests] Add tests for CAddrMan (warrows)
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### Miscellaneous
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- #744 `7e52f58b82` [Refactor] Refactor bignum header file into several files (warrows)
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- #808 `8b54f7150b` [Scripts] Add optimize pngs python script (cevap)
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- #824 `3323f26848` [Refactor] Remove stale obfuscation code (Fuzzbawls)
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- #830 `81038da4f8` [Refactor] Remove BOOST_FOREACH (Fuzzbawls)
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- #844 `0a0dcf0d4e` [Refactor] Replace deprecated auto_ptr with unique_ptr (cevap)
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- #856 `da26ddeeb9` [Refactor] Move per-chain budget cycle blocks to chainparams (Fuzzbawls)
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- #879 `5f0d72659c` [Refactor] Rename ui_interface.h file (Fuzzbawls)
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- #890 `fddac44eab` [Refactor] Remove unused setStakeSeen variable (warrows)
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- #903 `68c81c407a` [Log] Handle errors during log message formatting (warrows)
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- #904 `6f597629d8` [zAGR] Free memory from ToString() (warrows)
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- #912 `5f167c2c7e` [Cleanup] compiler warnings in coinSpend object. (furszy)
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- #919 `c0233e4af6` [zAGR] Debug missing jump line. (Matias Furszyfer)
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- #920 `a56cc2948d` [Docs] Overhaul documentation files (Fuzzbawls)
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- #921 `893183339e` [Scripts] Overhaul supplemental python/shell scripts (Fuzzbawls)
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- #926 `49a69b8931` [Doc] 3.3.0 Notable Changes (Fuzzbawls)
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- #927 `048d1295dc` [Trivial] Update header copyright years (Fuzzbawls)
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## Credits
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Thanks to everyone who directly contributed to this release:
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- Alko89
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- CaveSpectre11
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- Fuzzbawls
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- Julian Meyer
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- Matias Furszyfer
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- cevap
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- Wladimir J. van der Laan
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- random-zebra
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- warrows
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As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/agrarian-project-translations/), the QA team during Testing and the Node hosts supporting our Testnet.
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