generated: '2026-08-04'
method: searched
source: >-
  https://github.com/hammer-space/csi-plugin/blob/main/CHANGELOG.md and the
  Hammerspace news room release announcements
note: >-
  Hammerspace does not publish a dated changelog for the Data Platform itself on
  a public URL — product release notes ship to customers with the software and
  through the gated support portal. Two public change surfaces exist and are
  recorded separately below: a formal Keep a Changelog file for the open source
  CSI driver, and the versioned product release announcements in the news room.
surfaces:
- id: csi-plugin
  name: Hammerspace CSI Volume Plugin
  url: https://github.com/hammer-space/csi-plugin/blob/main/CHANGELOG.md
  format: Keep a Changelog 1.0.0
  scheme: semver
  current: 1.3.0
  dated: false
  note: Entries are versioned and categorised (Added/Changed/Removed/Fixed/Security)
    but carry no release dates.
  entries:
  - version: 1.3.0
    breaking: true
    highlights:
    - Added the objectiveTarget StorageClass parameter (share | file | both) so
      file-backed provisioning skips the per-file objective set and the Anvil
      file-visibility poll.
    - Added OpenTelemetry tracing and Prometheus metrics across every controller
      and node RPC and every Anvil REST call (hs_csi_operation_*,
      hs_csi_anvil_requests_total).
    - Added minimum size gates for file-backed volumes and an fsfreeze of the
      source volume before snapshot.
    - Added Kubernetes 1.34/1.35/1.36 manifests and an importable Grafana
      dashboard under deploy/monitoring.
    - Removed ext3 as a supported file-backed filesystem; CreateVolume now
      rejects fsType=ext3 with InvalidArgument.
    - Changed task-completion polling to a fixed 2s/30s-then-4s cadence instead
      of exponential backoff.
    - Security — hardened example credential handling, added SECRETS.md covering
      a least-privilege Anvil service account, and scoped the secrets RBAC grant
      to get on a single named Secret.
  - version: 1.2.9
    breaking: true
    highlights:
    - Included share objectives in share create requests instead of follow-up
      objective-set calls.
    - Treated all known terminal task states consistently when polling.
    - Removed the driver-specific clientMountOptions StorageClass parameter in
      favour of Kubernetes mountOptions / CSI mountFlags.
    - Honoured the fqdn StorageClass parameter in Anvil-only deployments with no
      data portals.
  - version: 1.2.8
    breaking: false
    highlights:
    - Added OpenTelemetry tracing with W3C traceparent propagation on all REST
      calls to Hammerspace.
    - Added NFS root-share mounting with per-volume bind mounts.
    - Added the mountBackingShareName StorageClass parameter.
- id: data-platform
  name: Hammerspace Data Platform / Global Data Platform
  url: https://hammerspace.com/news-room/
  format: press announcements
  scheme: major.minor
  current: '5.2'
  dated: true
  entries:
  - version: 'AI Data Platform (NVIDIA reference design)'
    date: '2026-03'
    highlights:
    - Made the AI Data Platform generally available on an NVIDIA reference design.
    - Integrated a Milvus vector database and Model Context Protocol services to
      turn unstructured enterprise data into searchable embeddings and connect AI
      agents and RAG workflows to business data.
    - Kept vectors and source data continuously synchronised under one governance,
      compliance and performance policy.
    source: https://hammerspace.com/hammerspace-launches-ai-data-platform-based-on-nvidia-reference-design/
  - version: 'FIPS 140-3 validation'
    date: '2026-03-31'
    highlights:
    - Announced FIPS 140-3 validated cryptography, with integration into the Data
      Platform planned for a release by the end of 2026, covering data in flight
      and at rest for federal, defence, healthcare and finance deployments.
    source: https://hammerspace.com/hammerspace-announces-fips-140-3-validation-plans-to-integrate-certified-cryptography-into-data-platform/
  - version: '5.2'
    date: '2025-11-17'
    breaking: false
    highlights:
    - Performance, security and ecosystem enhancements for AI and HPC workloads.
    - 33.7% higher IO500 overall score than the prior release, roughly double total
      bandwidth, and over 800% gain in IOR-Hard-Read.
    source: https://hammerspace.com/hammerspace-announces-latest-version-of-its-data-platform/
  - version: '5.1'
    highlights:
    - Introduced Tier 0, using unused local NVMe on GPU servers as part of the
      global shared file system.
    - Added client-side S3 protocol support.
    - Added three-way high availability for metadata servers with automated
      failover across clusters and sites.
    - Added high availability in Google Cloud and a tile-based customisable GUI
      dashboard.
  - version: '5.0'
    highlights:
    - Release 5 performance work plus support for Backblaze, Zadara and Wasabi as
      backing object storage.
x-evidence:
  fetched: '2026-08-04'
  caveat: >-
    The data-platform entries are reconstructed from Hammerspace's own press
    releases; Hammerspace does not publish per-release notes at a public URL, so
    dates are present only where the announcement carried one.