OpenSearch Dashboards
This feed samples OpenSearch Dashboards; its latest entry is a 2.19.7 notes commit.
Comparison · Analytics
Countly vs Delta Lake
A side-by-side editorial comparison of Countly and Delta Lake — release velocity, themes, recent moves, and the top alternatives to consider.
Countly vs Delta Lake: at a glance
What is Countly?
Countly's two LTS lines now get the same security fixes within a week of each other.
Countly ships security patches on two LTS lines, 25.03 and 24.05. In late October 25.03.56 moved the Docker images to Node.js 24.22.1 for a Brotli CVE and brought Python 3.12.15 to the A/B testing stack; 25.03.58 tightened tokens: app-restricted tokens must state their permissions, password changes revoke a member's tokens, and single-use tokens hold under concurrent requests. 24.05.55 then brought those same fixes to the older line, including the isolated-vm sandbox for custom hook code that 25.03 adopted in August.
What is Delta Lake?
Delta Lake's public stream is release mechanics; Kernel builds now carry a 4.5.0 label.
Recent Delta Lake activity is mostly release mechanics: 4.4.0 and 4.4.1 tags, a stream of Databricks runtime kernel builds, and patch releases. The newest build is labelled Delta Kernel 4.5.0, the first sign of the next minor line. The substantive user-facing work sits in patches such as the 3.3.3 fix for log cleanup deleting files still needed for time travel.
Countly vs Delta Lake: editorial side-by-side
Countly
5.0ANALYTICS
Countly's two LTS lines now get the same security fixes within a week of each other.
◆ Current state
Countly ships security patches on two LTS lines, 25.03 and 24.05. In late October 25.03.56 moved the Docker images to Node.js 24.22.1 for a Brotli CVE and brought Python 3.12.15 to the A/B testing stack; 25.03.58 tightened tokens: app-restricted tokens must state their permissions, password changes revoke a member's tokens, and single-use tokens hold under concurrent requests. 24.05.55 then brought those same fixes to the older line, including the isolated-vm sandbox for custom hook code that 25.03 adopted in August.
◆ Where it's heading
The work is about access control and supply chain, not new analytics features. Tokens, sessions and login counting are being tightened release by release, and the 24.05 line is being pulled up to the 25.03 runtime (Node.js 22 for custom code, Python 3.12 with CmdStanPy for A/B testing) instead of being left on older stacks. Feature work shows up only in small items such as explicitly named databases and a licence payment-overdue banner.
◆ Prediction
Expect more paired patches as token and session hardening continues on both lines. The entries don't say how long 24.05 will keep receiving backports.
Delta Lake
5.0ANALYTICS
Delta Lake's public stream is release mechanics; Kernel builds now carry a 4.5.0 label.
◆ Current state
Recent Delta Lake activity is mostly release mechanics: 4.4.0 and 4.4.1 tags, a stream of Databricks runtime kernel builds, and patch releases. The newest build is labelled Delta Kernel 4.5.0, the first sign of the next minor line. The substantive user-facing work sits in patches such as the 3.3.3 fix for log cleanup deleting files still needed for time travel.
◆ Where it's heading
The project keeps 3.x and 4.x alive and spends its public changelog on correctness and catalog integration rather than new table features. Kernel builds tagged for Databricks runtime suggest Kernel development is paced by Databricks' own release train, with the open-source releases following.
◆ Prediction
A 4.5.0 open-source release is the likely next notable entry given the kernel version label, but the entries don't say what it will contain.
Alternatives to Countly and Delta Lake
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Countly or Delta Lake.
Apache Iceberg
Iceberg 1.12 drops Spark 3.4 and starts laying groundwork for the v4 table spec.
ManageEngine Log360
Log360's September build fixes the migration to the unified console.
Deepnote
Deepnote's agent now runs from first prompt to finished notebook without handoffs.
Apache Storm
Storm 3.1 adds an Iceberg sink and closes a long list of security gaps in Nimbus and the UI.
Apache HertzBeat
HertzBeat's 1.9.0 is on its second release candidate, and the feed still skips 1.8.0.
See all Countly alternatives → · See all Delta Lake alternatives →
Recent activity from Countly and Delta Lake
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoCountlyCountly Version 24.05.55
- 6d agoCountlyCountly Version 25.03.58
- 7d agoCountlyCountly Version 25.03.57-LTS
- 10d agoCountlyCountly Version 25.03.56-LTS
- 20d agoDelta LakeDelta Kernel 4.5.0 Databricks runtime build
- 21d agoCountlyCountly Version 25.03.55
- 1mo agoCountlyCountly Version 24.05.54
- 1mo agoDelta LakeDelta Lake 4.4.1 patch release tagged
- 1mo agoDelta LakeInternal Databricks runtime kernel build
- 2mo agoDelta LakeDelta Lake 4.4.0 released
- 2mo agoDelta LakeDelta Lake 3.3.3
- 3mo agoDelta LakeInternal Databricks runtime kernel build
Frequently asked questions
What is the difference between Countly and Delta Lake?
They serve adjacent needs but don't currently overlap on shipped themes. Countly and Delta Lake are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Countly better than Delta Lake?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Countly and Delta Lake are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to Countly?
Top Countly alternatives in Analytics are ranked by recent ship velocity. Browse the "Countly alternatives" section above for the current picks, or visit /alternatives/countly for the full list with editorial commentary on each.
What are the best alternatives to Delta Lake?
Top Delta Lake alternatives in Analytics are ranked by recent ship velocity. Browse the "Delta Lake alternatives" section above for the current picks, or visit /alternatives/delta-lake for the full list with editorial commentary on each.