> For the complete documentation index, see [llms.txt](https://help.bioinsight.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.bioinsight.illumina.com/correlation-engine/reference/release-notes.md).

# Release Notes

## 2026 June 7 — Correlation Engine 2.9.0

### New Features and Enhancements

* High resolution bioset-bioset graphs
* New single cell signatures for Body Atlas
* Meta-Analysis file export and API result improvements
* New filter options added to Atlases and Meta-Analysis

### Fixed Issues

* Fixed an issue where facet filters would disappear and reappear when multiple facets clicked in Clinical Trials and Literature
* Fixed an issue where the Knockdown Atlas did not include child genemode concepts with parent genemode concepts
* Fixed an issue where Clinical Trials location pins were not present for newer trials
* Fixed an issue where some exported data were in the wrong columns for somatic mutation and SNP GWAS datatypes

### Known Issues

* None

### Data Content Updates

|         | Added since prior minor version release | Total public content |
| ------- | --------------------------------------- | -------------------- |
| Studies | 219                                     | 27,566               |
| Biosets | 1,568                                   | 202,676              |

Single cell biosets incorporated into Body Atlas: 3,287

***

## 2026 March 25 — Correlation Engine 2.8.0

### New Features and Enhancements

* Single Cell types in Body Atlas app and Body Atlas API
* Filtering of Correlated Disease by datatype and organism data in Disease Atlas
* Filtering of Correlated Compounds by datatype and organism data in Pharmaco Atlas
* Filtering of Perturbed Genes by datatype and organism data in Knockdown Atlas
* Expanded number of results returned in Genetic Markers and Knockdown Atlas apps
* Header updated to match new Illumina style and navigation to other applications
* Import enhancement to enable both rank and fold change as statistical columns in the same bioset
* Updated copyright year to 2026

### Fixed Issues

* Fixed an issue where import could not handle version number suffixes in import identifiers
* Fixed an issue where import verify API failed to handle large numbers of biosets
* Fixed an issue where macOS metadata in zipped files caused import to fail
* Fixed an issue where *Macaca mulatta* and *Pan troglodytes* features were missing from GO taxonomy

### Known Issues

* On Clinical Trials page, the location is not indicated on the map graphic for some trials
  * The correct location information is described in the text on the page
* On Clinical Trials page, selecting a facet filter sometimes causes other facets to disappear
  * Click on Clear All Filters to restore the full facet list
* For somatic mutation and SNP GWAS datatypes, some exported data are in the wrong columns
  * The data present are correct but formatted incorrectly

### Data Content Updates

|         | Added since prior minor version release | Total public content |
| ------- | --------------------------------------- | -------------------- |
| Studies | 210                                     | 27,347               |
| Biosets | 1,747                                   | 201,108              |

Biosets incorporated into Single Cell Body Atlas: 1,357

***

## 2025 November 14 — Correlation Engine 2.7.0

### New Features and Enhancements

* Updates to MeSH (Medical Subject Headings) descriptions added
* Enabled importing multiple biosets in a single API job
* Enabled return of external identifiers to biogroups.api results
* New public content

### Fixed Issues

* None

### Known Issues

* *Macaca mulatta* and *Pan troglodytes* biosets missing gene ontology biogroup matches

### Data Content Updates

|         | Added since prior minor version release | Total public content |
| ------- | --------------------------------------- | -------------------- |
| Studies | 405                                     | 27,137               |
| Biosets | 2,974                                   | 199,361              |

***

## 2025 August 14 — Correlation Engine 2.6.1

### Features and Enhancements

* None

### Fixed Issues

* Fixed an issue where bookmarks showed incorrect URL
* Fixed an issue where sequence centric uploads required the selection of an experiment type
* Fixed an issue that prevented protein-DNA binding and histone modification datatypes from being added to histogram visualizations in Meta-Analysis

### Known Issues

* None

***

## 2025 June 16 — Correlation Engine 2.6.0

### Features and Enhancements

* Scatter plot visualization of bioset vs. bioset comparisons
* Import now accepts feature identifiers with version numbers appended
* Protein datatype added to the import API

### Fixed Issues

* Fixed an issue where no studies were showing under the "Studies for" tab in Pathway Enrichment and data could not be exported
* Fixed an issue where filters on Meta-Analysis/Bioset Results tab were not applied to export
* Updated privacy link in the footer

### Known Issues

* None

### Data Content Updates

|         | Added since prior minor version release | Total public content |
| ------- | --------------------------------------- | -------------------- |
| Studies | 1,108                                   | 26,731               |
| Biosets | 9,458                                   | 196,387              |

***

## 2025 April 10 — Correlation Engine 2.5.2

### Features and Enhancements

* None

### Fixed Issues

* Fixed an issue where recent clinical trial results were not showing
* Fixed an issue where RNA-Seq study count was not showing for domains without domain libraries
* Fixed an issue where the public QuickView page was under heavy crawl load
* Fixed copyright year to 2025 on all web pages

### Known Issues

* None

***

## 2025 February 25 — Correlation Engine 2.5.1

### Features and Enhancements

* None

### Fixed Issues

* Fixed an issue where recent clinical trial results were not showing
* Fixed an issue where RNA-Seq study count was not showing
* Fixed an issue where admin console access was blocked
* Fixed an issue where user groups were not indexed/updated

### Known Issues

* None

***

## 2024 December 17 — Correlation Engine 2.5.0

### Features and Enhancements

* Scatter plot displays of individual bioset data
* Updates to "What's New at Correlation Engine"
* Export enabled for SNP and DNA sequence-centric bioset data
* Display of RNA-Seq study counts on home page
* Updated Terms and Conditions

### Fixed Issues

* Fixed an issue where filtering by genes in Meta-Analysis failed to map synonyms
* Fixed an issue where import returned a time-out error when under heavy workload

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 383                       | 26,400               |
| Biosets | 3,523                     | 192,500              |

First-time addition of single-cell RNA-seq data to the public library:

|                     | Total public content |
| ------------------- | -------------------- |
| Single cell studies | 60                   |
| Single cell biosets | 2,417                |

***

## 2024 August 6 — Correlation Engine 2.4.0

### Features and Enhancements

* Heatmap displays of gene and biogroup Meta-Analysis results
* Updates to "What's New at Correlation Engine?"

### Fixed Issues

* Fixed an issue where study counts were mismatched in Disease Atlas
* Fixed an issue where some import scoring jobs failed and required re-submission
* Fixed an issue where deleted biosets still affected overall study ranks
* Fixed an issue where some studies with the Alzheimer's disease tag were not categorized

### Known Issues

* When searching by gene query on the Cell Lines tab in Body Atlas, some genes return no results in the expanded third level details

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 210                       | 26,117               |
| Biosets | 1,094                     | 188,977              |

***

## 2024 February 12 — Correlation Engine 2.3.0

### Features and Enhancements

* Images of QC plot files associated with public studies now streamed to the UI
* Updated "What's New?" section on home page
* Updated copyright year to 2024

### Fixed Issues

* Fixed an issue where some GWAS studies had outdated URLs in their description

### Known Issues

* When searching by some biosets in Disease Atlas, some concepts show incorrect counts on the 'Studies for Concept' tab
* When searching by gene query on the Cell Lines tab in Body Atlas, some genes return no results in the expanded third level details

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 145                       | 25,907               |
| Biosets | 363                       | 187,883              |

***

## 2023 November 28 — Correlation Engine 2.2.1

### Features and Enhancements

* Update to Frequently Asked Questions with additional information to explain minimum column requirements for import
* New example files available in Import help

### Fixed Issues

* Fixed an issue where some somatic mutation data in Body Atlas cell lines was missing from bioset queries
* Fixed an issue where a user received a "Succeeded" and "Failed" import message, followed by a "Succeeded" import message, and then a duplicate empty study would appear beside the correct study
* Fixed an issue where imported gene identifiers used by different platforms for different genes prevented identifying the correct platform for import
* Fixed an issue where a public study showed the wrong associated files
* Fixed an issue where autocomplete performance was slowed

### Known Issues

* No reported issues

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 139                       | 25,762               |
| Biosets | 591                       | 187,520              |

***

## 2023 August 28 — Correlation Engine 2.2.0

### Features and Enhancements

* Swagger integration for Application Programming Interfaces (APIs)
* Updated FAQ
* Updated Terms of Service
* Pathway Viewer and Pathway Studio links deprecated
* mSigDB collection 8 cell types addition
  * Note: New imports will show results with the new mSigDB collection. Older imports will show incomplete results while re-scoring against the new biogroups takes place over the next several weeks.

### Fixed Issues

* Fixed an issue where "Edit description" from Action drop down in Curated Studies was disabled
* Fixed an issue where data filter did not return cell line results when filtering for copy number or somatic mutations in Cell Lines – Body Atlas

### Known Issues

* No reported issues

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 515                       | 25,623               |
| Biosets | 13,071                    | 186,929              |

***

## 2023 March 7 — Correlation Engine 2.1.1

### Features and Enhancements

* Meta-Analysis API — programmatically access the Meta-Analysis app functionality
* Send to email option for large data exports from the user interface
* Security improvements
* Updated copyright to 2023

### Fixed Issues

* Fixed an issue where non-human biogroup results were showing duplicate features
* Fixed an issue where the region filter was not present for Histone Ubiquitination, Histone Acetylation, Histone Methylation bioset inspectors
* Fixed an issue where export from Active Biogroups timed out in studies with more than 20 biosets
* Fixed an issue where third-level bioset queries were making unnecessary redundant calls creating a delay
* Fixed an issue where some concepts were not finding studies/biosets with the corresponding tag in Curated Studies

### Known Issues

* Data filter does not return cell line results when filtering for copy number or somatic mutations in Cell Lines - Body Atlas
  * Workaround: Browse for Body Atlas cell lines where CNV or SM data is present and open individual datasets to inspect
* 'Edit description' from Action drop down in Curated Studies temporarily disabled
  * Workaround: Load Study Inspector and click 'Edit description' button

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 328                       | 25,108               |
| Biosets | 7,841                     | 173,858              |

***

## 2022 September 2 — Correlation Engine 2.1.0

### Features and Enhancements

* Assay for transposase-accessible chromatin with high-throughput sequencing (ATAC-seq) enabled as a new supported datatype
* Import Data Page help updated with guidelines and example files for ATAC-seq import
* Boolean search for ATAC-seq data enabled

### Fixed Issues

* Fixed an issue where on first upload of a bioset with a new concept tag, the tag category could not be found in Pathway Enrichment when searched for by same tag
* Fixed an issue where the count of studies found by concept tag in Pathway Enrichment was not updated after new study import
* Fixed an issue where studies in Curated Studies could not be found by compound tag Iniparib
* Fixed an issue where there was an intermittent error on import mapping step when lift-over was applied
* Fixed an issue where there was an intermittent interruption of import resulting in some or all missing biosets

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 184                       | 24,780               |
| Biosets | 7,764                     | 166,017              |

***

## 2022 May 18 — Correlation Engine 2.0.6

### Features and Enhancements

* Import API extended to support all datatypes, now in addition to RNA-Expression:
  * Protein-DNA binding (ChIP-seq)
  * Methylation
  * SNP/GWAS
  * Copy number variation
  * Somatic Mutation
  * miRNA expression
  * Protein expression
* Security and performance improvements
* News feature removed due to discontinued RSS feeds

### Fixed Issues

* Fixed an issue where searching Cell Line Body Atlas by certain Biogroups and viewing by rank returned an error
* Fixed an issue where the owner's name of public studies was not properly appearing

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 164                       | 24,596               |
| Biosets | 751                       | 158,253              |

***

## 2022 March 15 — Correlation Engine 2.0.5

### Features and Enhancements

* Updated copyright year to 2022
* Added 'single cell' as filterable sample source under advanced filter
* Back-end updates to import process:
  * Extended database capacity
  * Updated APIs to improve performance of data transfer during import
* Updated wording on licensing page
* Security and performance improvements

### Fixed Issues

* Fixed an issue where no warning message was given when a user tried to delete a group
* Fixed an issue where second-level details of a study with hundreds or more biosets failed to expand when searching by gene
* Fixed an issue where synonyms could not be deleted in ontology
* Fixed an issue where studies did not show in certain categories (e.g., Olaparib)
* Fixed an issue where the Clinical Trials map was not displaying properly
* Fixed an issue where graphs in Meta-Analysis/Biogroups did not appear correctly when p-values were extremely small
* Fixed an issue in Boolean Search where some genes were missing from autocomplete

### Data Content Updates

|         | Added since prior release | Total public content |
| ------- | ------------------------- | -------------------- |
| Studies | 1,597                     | 24,549               |
| Biosets | 2,419                     | 157,558              |

***

## 2021 December 14 — Correlation Engine 2.0.4

### Features and Enhancements

* Added notification to ask user to review automated platform selection at 'review and submit' step of import
* Enhanced Import REST API to support inclusion of supplemental report files
* Enhanced Biosetfeatures REST API to include option to return normalized rank score shown in Meta-Analysis
* Updates to improve import performance and provide improved feedback to user
* Security and performance improvements

### Fixed Issues

* Fixed an issue where async import failed to write complete information to database
* Fixed an issue where the wrong default platform was pre-selected during import
* Fixed an issue where obsolete custom platforms appeared in drop down at mapping step
* Fixed an issue where the count of features displayed during data mapping import step differed from actual number of features in imported biosets
* Fixed an issue where some biogroups were missing from Body Atlas Cell Lines page
* Fixed an issue where biosets imported on NGS platforms mapped a small number of genes incorrectly
* Fixed an issue where bioset-bioset queries timed out and failed to load when very large biosets were compared

***

## 2021 September 7 — Correlation Engine 2.0.3

### Features and Enhancements

* Added position verification checks on all genome builds. Genomic coordinates outside the range of known possible genomic coordinates will be dropped from uploads with a warning message to user
* miRNA features updated from mirBase16 to mirBase22
  * \~2–3× increase in number of miRNA features, depending on reference genome
  * Up to 20× increase in miRNA-gene target linkages, depending on reference genome
* Security and performance improvements

### Fixed Issues

* Fixed issue where miRNA import was disabled; public and private miRNA content have been reimported with updated feature information
* Fixed an issue where new imported studies were missing from concept search results in Pathway Enrichment
* Fixed an issue where study indexing failed intermittently
* Fixed an issue where the EULA conflicted with single sign-on and IP restriction

***

## 2021 February 16 — Correlation Engine 2.0.2

### Features and Enhancements

* OMIM datasets have been updated to provide latest disease-gene associations
* New L1000 Connectivity Map datasets added to public library, providing new chemical and genetic perturbation gene expression datasets

### Fixed Issues

* Fixed an issue where non-human species datasets were not available when browsing MsigDB biogroups
* Fixed an issue where genome build conversion was disabled (current accepted genome builds restored)
* Fixed an issue where the Literature App did not update daily
* Fixed an issue where `.xlsx` format documents were not supported for import
* Fixed an issue where 'Request a study' was disabled
* Fixed an issue where files associated to a study were not accessible in the UI (Enterprise accounts only)
* Security updates

***

## 2020 November 4 — Correlation Engine 2.0

### Features and Enhancements

* Deployment of application to Amazon Web Services (AWS)
* Gene model updates: Entrez 2018-01-01, GenBank v224, RefSeq v87, UniProt 2018-01, Homologene v68, MGI Vertebrate Homology 2018-02
* Biogroup updates based on: Gene Ontology 2018-07-23, MsigDB v6.2 (updated canonical pathways and positional gene sets; added hallmark gene sets, chemical and genetic perturbations, cancer gene neighborhoods, cancer modules, oncogenic signatures, immunologic signatures), InterPro v69
* Gene expression platform technology updates: 128 existing platforms refreshed, 15 new platforms added

### Fixed Issues

* Security fixes
* Browser back button did not properly refresh page in any atlas
* Biogroup Size filter was not applied when exporting bioset-biogroup search results


---

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