4.3 Changelog

Driver Migration Guide

Please read our Driver Migration Guide for guidance and breaking changes when migrating from 1.7 drivers to 4.X drivers.

Changelog

4.3.9

• Fix pool closing stale connections that are in use (#632). Especially, but not only, in concurrent contexts, this would lead to all sorts of unspecific errors.

4.3.8

• Fix wrong serialization of the Time type's timezone (#617).

4.3.7

• Use selectors.DefaultSelector instead of select.select which resolves the number of simultaneously open files (including sockets) being limited to 1024 on all operating systems that support it (#605).
• Log the reason when a secure connection could not be established (#609).

4.3.6

• Fix bug where the driver would try to remove the same connection from the pool multiple times causing ValueError: deque.remove(x): x not in deque (#598).
• Improve logging around connection errors (#595).

4.3.5

• Improve compatibility of driver's datetime implementation with Windows (#588).
• Fix potential endless loop on calling Result.peek() when fetch_size=0 is configured (#590)

4.3.4

• Add support for connection.recv_timeout_seconds connection hint (#557, #570).

4.3.3

• Bug fix (#561): when handling multiple query-results in a single transaction, the driver could sent too many PULL messages to the server causing it to respond with DatabaseError: Unknown statement ID….

4.3.2

• Bug fix that will enable using multi database functionality with 4.0.x-enterprise servers (#559).
  Note: only server versions 4.3.x and 4.2.x are fully supported and tested with this driver version. Other functionality might not work and won't get patched.

4.3.1

• Minor bug fix (#546): properly close connections when removed from the connection pool due to being stale (e.g., after authorization expiration).

4.3.0

• no changes

4.3.0rc1

• no changes

4.3.0b1

• Optimization: Refresh connection pool on Neo.ClientError.Security.AuthorizationExpired, (e.g. expired LDAP token). #540
• Bug fix: clean up connections released back into the connection pool. #539

4.3.0a1

• Connectivity improvements #533, #531, #530, #518, #517
• Fixed bugs around surfacing connectivity errors. #519, #517
• Fixed spatial types when passed non-float arguments.
• Implemented bolt 4.3 protocol.