--- title: "Google Algorithm Update History: 2024–2026" slug: google-algorithm-update-history-2024-2026 excerpt: "Every confirmed Google algorithm update from 2024 through June 2026, with start dates, completion dates, scope, and recovery notes. This is the timeline RankWizAI uses for update-correlation analysis." author: Sood author_title: Founder & CEO author_bio: "Founder of RankWizAI. Building tools that connect GSC data to content decisions and help teams prove what fixed their rankings." author_url: /authors/sood author_same_as: ["https://www.linkedin.com/in/sudhirprakash/", "https://x.com/sudhirprakash"] published_at: 2026-07-13 09:00:00 last_reviewed: 2026-07-13 meta_title: "Google Algorithm Update History: 2024–2026" meta_description: "Every confirmed Google update 2024–2026 with dates, scope, and recovery notes — the timeline behind RankWizAI's update correlation." category: algorithm-recovery reading_time_minutes: 12 featured: false keywords: - google algorithm update history - list of google updates 2026 - when was the last google update - google update timeline related_posts: - google-algorithm-update-traffic-drop - march-2026-spam-update-scaled-content - may-2026-core-update-recovery - hcu-recovery-checklist --- This is the canonical update timeline for 2024–2026 that RankWizAI uses for update-correlation analysis. When you run a before/after analysis with a May 21 start date, this is the reference that confirms whether your traffic drop aligns with the May 2026 core update or some other event. The timeline is updated within 72 hours of every confirmed Google update. Check the "Changelog" section at the bottom for the most recent additions. The fastest way to correlate your GSC traffic against this timeline: [connect your Search Console to RankWizAI](/recover). The update-correlation view overlays your daily clicks data on the update windows below and flags the likely cause automatically. ## 2026 Updates: Feb Discover Core, March Spam, March Core, May Core ### May 2026 Core Update **Start:** May 21, 2026 · **Completion:** June 2, 2026 · **Duration:** 12 days **Scope:** Broad quality signal recalibration, continuing the direction established by the March 2026 core update. Amplified E-E-A-T signals — particularly the Experience dimension — and [content freshness](/glossary/content-freshness) signals. Sites that had not addressed March 2026 E-E-A-T gaps entered this update carrying unresolved quality debt. **Patterns in affected sites:** - Informational content with weak author entity infrastructure - Sites that published high volumes of AI content without substantive human editing after March 2026 - Blogs with orphaned cluster pages receiving few internal links - Sites where author attribution was present only on some pages, not consistently across the domain **Recovery notes:** Full recovery expected at the next broad core update (anticipated Q3 2026). Partial page-level recovery possible with substantive E-E-A-T improvements. Noindexing thin pages and building author entity infrastructure are the two highest-priority actions. **Detailed recovery guide:** [May 2026 Core Update: What Hit & How to Recover](/blog/may-2026-core-update-recovery) --- ### March 2026 Core Update **Start:** March 27, 2026 · **Completion:** April 10, 2026 · **Duration:** 14 days **Scope:** Broad core quality recalibration with a documented emphasis on E-E-A-T signals. Google's official guidance emphasized the update's focus on rewarding content that demonstrates genuine experience and expertise. The Experience dimension of [E-E-A-T](/glossary/e-e-a-t) was specifically amplified relative to prior update cycles. **Patterns in affected sites:** - Content written by researchers rather than practitioners — accurate but lacking first-hand experience evidence - Author pages with no Person schema and no external professional presence - Sites with strong individual pillar pages surrounded by thin adjacent content - YMYL (Your Money, Your Life) categories disproportionately affected **Recovery notes:** For sites affected by both the March and May 2026 updates, the recovery sequence is: structural pruning → E-E-A-T infrastructure → content depth improvements on priority pages. Full recovery anticipated at Q3 2026 core update. **Detailed recovery guide:** [March 2026 Core Update: E-E-A-T Impact and Recovery](/blog/march-2026-core-update-eeat) --- ### March 2026 Spam Update **Start:** March 19, 2026 · **Completion:** March 26, 2026 · **Duration:** 7 days **Scope:** Targeted enforcement action against three specific spam tactics: scaled AI content abuse (mass-produced AI content with no human review or original value), expired domain abuse (buying expired domains with historical authority and filling them with new content), and parasite SEO (publishing low-quality content on high-authority host sites). **Distinct from core updates:** This was a targeted spam enforcement action, not a broad quality recalibration. Sites affected by this update were specifically engaged in the targeted tactics, not experiencing a general quality downgrade. **Patterns in affected sites:** - Sites with large volumes of obviously AI-generated content published rapidly in late 2025 and early 2026 - Domains with a large gap between historical authority (from the domain's prior life) and current content quality - Sites publishing low-quality articles on other domains without editorial oversight **Recovery notes:** Unlike core updates, spam update recovery does not require waiting for the next core update cycle. Removing or substantially improving the targeted content, cleaning up unnatural link patterns, and demonstrating genuine content quality can produce faster re-evaluation. However, sites with severe spam histories may face a prolonged recovery period. --- ### February 2026 Discover Update **Start:** February 9, 2026 · **Completion:** February 17, 2026 · **Duration:** 8 days **Scope:** Primarily affected Google Discover feeds and content shown in the Google app, with secondary effects on content ranking in news-adjacent, trending, and viral content niches. The Discover ranking system operates differently from core web search — it serves content to users based on interests rather than explicit search queries. **Patterns in affected sites:** - Sites that had relied heavily on Discover traffic for content about trending topics - News-adjacent blogs covering topics that fluctuate with news cycles - Limited impact on traditional informational content and evergreen SEO content **Recovery notes:** Discover traffic is inherently volatile and less predictable than search traffic. Sites primarily dependent on Discover traffic for a significant share of revenue should diversify to traditional search and newsletter/direct channels. --- ## 2025 Updates (Full Table) | Update Type | Start | End | Primary Signal Targeted | |---|---|---|---| | December 2025 Core | Dec 12, 2025 | Dec 26, 2025 | Broad quality recalibration | | November 2025 Link Spam | Nov 5, 2025 | Nov 13, 2025 | Unnatural link patterns, link buying | | October 2025 Core | Oct 15, 2025 | Oct 29, 2025 | Content quality, E-E-A-T | | September 2025 Spam | Sept 3, 2025 | Sept 9, 2025 | AI-generated spam, scaled content | | August 2025 Core | Aug 18, 2025 | Sept 1, 2025 | Broad quality recalibration | | July 2025 Reviews | Jul 7, 2025 | Jul 18, 2025 | Product/service review quality | | June 2025 Core | Jun 9, 2025 | Jun 23, 2025 | Helpful content signals (HCU integrated) | | May 2025 Spam | May 12, 2025 | May 18, 2025 | Parasite SEO, cloaking | | March 2025 Core | Mar 13, 2025 | Mar 27, 2025 | Broad quality, HCU classifier | | January 2025 Core | Jan 22, 2025 | Feb 4, 2025 | Broad quality recalibration | **Key 2025 development:** Google officially integrated the Helpful Content Update classifier into the core ranking system in March 2025. After this point, HCU-style quality scoring became a continuous component of every core update rather than a separate periodic update. Sites that lost rankings in any 2025 core update may have been affected by the HCU classifier without a standalone HCU update being declared. --- ## 2024 Updates: HCU Integration Into Core, Core & Spam Updates ### The HCU Integration (March 2024) The most significant structural change to Google's algorithm in 2024 was not a named update but a systemic change: Google folded the Helpful Content Update (HCU) classifier into its core ranking system in March 2024. Prior to this, HCU ran as a separate periodic update. After March 2024, the HCU classifier ran continuously as part of the core ranking infrastructure. This change explains why 2024 saw many sites experiencing gradual, sustained traffic declines without being able to attribute them to a specific named update. The classifier was running continuously, and sites with high proportions of unhelpful content were experiencing progressive suppression rather than the sharp drops that accompanied standalone HCU rollouts. ### 2024 Core and Spam Update Table | Update Type | Start | End | Primary Signal Targeted | |---|---|---|---| | November 2024 Core | Nov 11, 2024 | Nov 25, 2024 | Broad quality recalibration | | October 2024 Spam | Oct 19, 2024 | Oct 25, 2024 | AI spam, scaled content | | August 2024 Core | Aug 15, 2024 | Sept 3, 2024 | Broad quality (longest 2024 rollout) | | June 2024 Spam | Jun 20, 2024 | Jun 27, 2024 | Link spam, cloaking | | May 2024 Core | May 14, 2024 | Jun 5, 2024 | Broad quality + site reputation | | March 2024 Core | Mar 5, 2024 | Apr 19, 2024 | Quality + HCU integration + spam | **Notable about 2024:** The March 2024 core update was the largest in Google's history by declared scope — a 45-day rollout that combined a broad core quality recalibration with the HCU classifier integration and spam policy enforcement. Many sites experienced their largest-ever traffic drops in March–April 2024 as all three components of the update converged simultaneously. --- ## How to Read This Timeline Against Your Own Traffic The timeline above is only useful if you can match it against your own GSC data. Here's the interpretation framework. **Step 1: Find your traffic inflection date.** Pull daily clicks in GSC for the period you're investigating. Identify the specific date where clicks dropped abruptly (more than 15% in a single day) or where a gradual decline accelerated. **Step 2: Match against the update windows.** Does your inflection date fall within two days of a named update's start date? If yes, that update is the primary hypothesis. **Step 3: Check the update type.** Core update or spam update? If spam: investigate whether your site was specifically engaging in the targeted tactics. If core: assess quality signals (E-E-A-T, content freshness, site-level quality). **Step 4: Correlate against prior updates.** Has your site taken hits in multiple consecutive core updates? That indicates a persistent quality signal gap — the algorithm has consistently assessed your content as below the threshold for the signal it's weighting, and each update that amplifies that signal further disadvantages your site. For a walkthrough of the full diagnostic process, see [Google Update Traffic Drop? Do These 7 Things](/blog/google-algorithm-update-traffic-drop). --- ## Update Types Explained: Core vs Spam vs Discover vs HCU-Era **Broad core updates** are periodic recalibrations of Google's core ranking algorithm. They don't target specific sites or tactics. They adjust how the algorithm weights quality signals across billions of pages. Sites that gain or lose in core updates are experiencing the algorithm's reassessment of their content quality relative to competitors. **Spam updates** are targeted enforcement actions against specific policy-violating tactics. They're narrower in scope and faster in rollout than core updates. Recovery requires addressing the specific tactic, not broad quality improvement. **Discover updates** affect the Google Discover feed — content served based on user interests rather than explicit search queries. They don't affect traditional search rankings. **HCU-era quality assessment** (post-March 2024) is the continuous application of the Helpful Content classifier as part of core ranking. It's no longer a discrete update — it's a persistent signal that runs in every core update cycle. --- ## How Long Recovery Takes, Per Update Type | Update Type | Typical Recovery Timeline | Mechanism | |---|---|---| | Core update (single) | 3–4 months (next core update cycle) | Full recovery at next broad recalibration | | Core update (consecutive) | 6–12 months (multiple cycles) | Quality debt compounds across cycles | | Spam update | 4–8 weeks (after addressing specific tactic) | Targeted re-evaluation after compliance | | Discover update | 2–4 weeks (often self-resolving) | Volatile system with faster cycles | | HCU classifier | Gradual, proportional to archive cleanup | Site-level signal improves as quality share rises | **The consecutive update problem:** Sites that took hits in both the March and May 2026 updates are in the consecutive update category. Each update compounded unresolved quality debt. Recovery from this pattern requires addressing the quality signal gaps that both updates targeted — primarily E-E-A-T infrastructure and content freshness — and then waiting for the Q3 2026 core update to re-evaluate the improvements. --- ## Changelog: How We Keep This Page Current This page is updated within 72 hours of every confirmed Google algorithm update. | Date | Update | |---|---| | 2026-06-07 | Initial publication. Timeline covers Jan 2024–Jun 2026. | **If you see a new update we haven't logged yet:** Verified updates are confirmed through official Google Search Central communications, Google Search Liaison posts on X (formerly Twitter), and documented in the [Google Search Central Blog](https://developers.google.com/search/blog). We use all three sources before adding an update to this table. --- ## FAQ **How often does Google release algorithm updates?** Google releases minor algorithm updates daily (automated quality adjustments). Broad core updates occur approximately quarterly — four to six times per year. Spam updates are less predictable, typically two to four times per year. In 2026, Google released four confirmed updates in the first six months. **Where does Google announce algorithm updates?** Official announcements come from Google Search Central (developers.google.com/search) and from Danny Sullivan (@dannysullivan) and John Mueller's communications on X. Not every update is announced — minor updates run continuously without formal notification. **Can I predict when the next Google update will happen?** Core updates roughly follow a quarterly cadence, but the timing is not fixed. Based on the May 2026 update completing June 2, a Q3 2026 core update in July or August is historically consistent with Google's pattern. **Did the [Google core update](/glossary/google-core-update) in May 2026 affect all sites equally?** No. YMYL (Your Money, Your Life) categories — health, finance, legal — are disproportionately affected by E-E-A-T signal updates because those signals carry more algorithmic weight in high-stakes content categories. General informational content is affected, but typically to a lesser degree for equivalent signal weaknesses. **Is there a single resource for tracking Google updates in real time?** Google Search Central is the authoritative source. Third-party tools like Semrush Sensor, Moz Algorithm Change Log, and RankWizAI's update-correlation timeline aggregate this data with GSC integration. This page is the reference we publish and maintain.