Release Notes v5.15.1

Release Date

October 30, 2026

Scope

New AVEVA PI replication controls, HA status reporting, more efficient history backfill, PI Buffering support and multiple reliability fixes.

AVEVA Pi Connector - Enable/Disable Pi Replication Configuration

Turns individual Pi replication configurations on/off from Blue, so a standby site can stay disabled until needed for failover.

AVEVA Pi Connector - HA Status PI Tag

New PI tag shows which HA node is active without opening the NetWall UI.

AVEVA Pi Connector - Digital Type for Control Tags

Preferred flanker and HA control tags can now be Digital, preventing invalid values.

AVEVA Pi Connector - HistElapsed Reported in Seconds

Blue HistElapsed is now an integer (seconds) so it can be trended in PI Vision.

AVEVA Pi Connector - Large Point Source Lists

Simplifies adding and managing large numbers of PI point sources.

AVEVA Pi Connector - Shared Point Sources

The same point source can now be used in multiple PI configurations.

AVEVA Pi Connector - No .bin File Required on Red (Pi2Pi)

Points are now matched by Point Name instead of PI Point Index, removing the .bin requirement on Red for Pi2Pi.

AVEVA Pi Connector - No Startup Wait for Schema

Pi2Pi and PI Database Replication now process snapshots and history immediately instead of waiting for the Blue schema.

AVEVA Pi Connector - Uninterrupted Processing During Point List Refresh

Schema and history processing now continue during a Red Point List refresh.

AVEVA Pi Connector - Smarter History Tracking and Backfill

Skips history already delivered via snapshots, and processes each history block only once and sends fewer queries to Red PI servers.

AVEVA Pi Connector - PI Buffering and Collective Support

Uses the PI Buffering System to write data to all collective members in chronological order, reducing out-of-order events on Red.

AVEVA Pi Connector - Automatic Backfill

Fixes History Stack overflows and “History stack size exceeded” errors on Red.

AVEVA Pi Connector - Memory Usage

Fixes memory growth issue after a Blue flanker restart and schema push.

AVEVA Pi Connector - Backfill Pacing

Fixed backfill running too quickly when no historical data exists.

AVEVA Pi Connector - Prepend/Append Point Names

Prefixed or suffixed points are now created on Red without restarting the Blue service.

AVEVA Pi Connector - Pi2Pi Flanker Installer

Windows firewall rule now uses the correct install path (C:\Program Files\OPSWAT).

AVEVA Pi Connector - Pi2Pi Flanker Uninstaller

Uninstall now stops svcOpswPi2PiBlue.exe correctly.

AVEVA Pi Connector - Missing Compression on Replicated Data

Data replicated to the destination PI server now goes through standard PI compression, so the destination archive stores same number of values as the source.