--- ID: 2743 post_title: 'New Release: 1.1.0' author: Jack Grigg post_excerpt: "" layout: post permalink: https://blog.z.cash/new-release-1-1-0/ published: true post_date: 2018-04-14 12:09:17 --- Edit 2018-05-31: Auto-senescence terminology changed to "end-of-support halt". After several months of work, we are happy to announce the release of Zcash 1.1.0, the first Overwinter-compatible version of the Zcash node software!
-mempooltxinputlimit
deprecation-mempooltxinputlimit
configuration option was added in release 1.0.10 as a short-term fix for the quadratic hashing problem inherited from Bitcoin. At the time, transactions with many inputs were causing performance issues for miners. Since then, several performance improvements were merged from the Bitcoin Core codebase to significantly reduce these issues.
The Overwinter network upgrade includes changes that solve the quadratic hashing problem. As a result, the -mempooltxinputlimit
option is no longer needed. A transaction with 1000 inputs will take just as long to validate as 10 transactions with 100 inputs each. Starting from this release, -mempooltxinputlimit
will be enforced before the Overwinter activation height is reached, but will be ignored once Overwinter activates. The option will be removed entirely in a future release after Overwinter has activated.
NODE_BLOOM
service bitNODE_BLOOM
service bit, as described in BIP 111, has been added to the P2P protocol code.
BIP 111 defines a service bit to allow peers to advertise that they support Bloom filters (such as used by SPV clients) explicitly. It also bumps the protocol version to allow peers to identify old nodes which allow Bloom filtering of the connection despite lacking the new service bit.
In this version, it is only enforced for peers that send protocol versions >=170004
. The plan is to remove this restriction in the next major version. Updating SPV clients to check for the NODE_BLOOM
service bit for nodes that report version 170004 or newer is recommended.
-mempooltxinputlimit
. (#3098)NODE_BLOOM
service bit. (#2814)z_mergetoaddress
when running it several times in parallel. (#3106)