Adaptive fees

!!! Please use update with hot fixes for this release v. 1.5.4 !!!

In this release HARDFORK V4 IS SET AT HEIGHT 266000. What's new:

• Stopping offline timestamp attacks with Poisson check by RYO Currency Project (https://github.com/ryo-currency/ryo-writeups/blob/master/poisson-writeup.md)
• Adaptive minimal transaction fee
• LWMA-2 Difficulty Algorithm by Zawy (zawy12/difficulty-algorithms#3)
• New FTL and MTP limits
• Minimum mixin limit
• Changed dust threshold
• Changed block template
• Various fixes and improvements

Information for exchanges and other services how to work with new fees: https://github.com/seredat/karbowanec/wiki/Dynamic-transaction-minimum-fee

Pools operating 'cryptonote-forknote-pool' or compatible software should update Node-Cryptonote-Util to this version: https://github.com/aivve/node-cryptonote-util. The reference pool software is here: https://github.com/Karbovanets/karbo-pool.

Pools operating 'cryptonote-nodejs-pool' should change config on hardfork height. The changes in config are:

"daemonType": "default",
"cnAlgorithm": "cryptonight",
"cnVariant": 0,
"cnBlobType": 0,

The example of Karbo config is here: https://github.com/Karbovanets/cryptonote-nodejs-pool/blob/master/config_examples/karbo.json

Revert optimizations that break compatibility with third-party GUI and Lite wallets.

For pools

• Load checkpoints from DNS and from CSV file
• status command for daemon
• Dust now is not included in transactions by default (use sweep_dust in simplewallet to send it to youself). This allows for pools to set payout mixin higher.
• Triangular distribution for mixins
• Various fixes and improvements

This release is for pools in the first place. Pool owners, please update to patched version or contact us to get patch and instructions.

Minimal Fee

• temporarily to prevent spam minimum transaction fee is set to 0.1 krb (100000000000 atomic units)
• replaced checkpoint
• minimum fee validation
• fixed synchronization

Because Karbo network is under spam attack we are enforced to temporarily set minimum transaction fee to 0.1 krb to stop blockchain bloating right now and to win us time to introduce better minimum fee formula.

TX Hotfix

• Mixin size limit

0.1 krb minimum fee

• temporarily to prevent spam minimum transaction fee is set to 0.1 krb
• replaced checkpoint

Because Karbo network is under spam attack we are enforced to temporarily set minimum transaction fee to 0.1 krb to stop blockchain bloating right now and to win us time to introduce better minimum fee formula.

v.1.4.8

• New difficulty algo LWMA with harmonic mean difficulty (scheduled hardfork at height 216000)
• New future block time limit
• Default dust threshold reduced to zero
• Simplewallet improvements, new commands and RPC methods
• Various bugfixes

v.1.4.6

• Android platform support
• Added logging to blockchain synchronizer
• Refactored mnemonics
• Fixed memory leaks in mnemonics
• Fixed memory leak in simplewallet
• Fixed memory leak in cn_slow_hash
• Minor optimization of JSON KV-serializer
• LoggerMessage implementation is now platform-independent

Requires Linux Ubuntu 16.04 LTS

v.1.4.4

• Update seed nodes
• Monero Lab bug fix attribution
• One more key_image check
• Lowered upper transaction size limit

v.1.4.3

• Security update
• Network ID now is based on Genesis coinbase tx hash

v.1.4.2

• OpenAlias support in simplewallet
• More readable prompt in simplewallet
• Difficulty for Explorer in f_block_short_response
• Fix for ConsoleHandler under Windows