{"slug":"tplink-deco-s4-v2-6-us","display_name":"Deco S4","model_name":"Deco S4","hardware_revision":"v2.6","region_code":"US","category":"mesh_node","vendor":{"slug":"tplink","name":"TP-Link"},"verdict":{"status":"quiet","label":"Gone quiet","confidence":"medium","reason":"762 days since the last release against a median gap of 106 (7.2x)","algorithm_version":"lifecycle-1","computed_at":"2026-09-30T01:14:42.072527+00:00","thresholds":{"quiet_days":730,"active_max_days":365,"active_multiple":1.5,"slowing_multiple":3.0,"max_gap_dispersion":1.0,"high_confidence_releases":5,"min_releases_for_cadence":3,"never_updated_min_age_days":365}},"measurements":{"release_count":5,"first_release_date":"2022-06-10","last_release_date":"2024-08-29","days_since_last_release":762,"median_gap_days":106.0,"cadence_multiple":7.189,"observed_support":{"days":811,"is_floor":true,"measured_from":"first_release"},"promise":{"end_date":null,"is_estimated":false,"is_floor":false,"honoured":null,"basis":"no_eol_announcement"},"cve_patch_latency_days":{"median":null,"measurable":false}},"releases":[{"version":"Deco S4(US)_V2.6_1.6.2 Build 20240718","channel":"stable","claimed_release_date":"2024-08-29","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-01T18:37:57.630436+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Fixed some security vulnerabilities.","disclosure_score":0.06,"mentions_security":true,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2024/202408/20240829/S4_2.0_en_1.6.2_Build_20240718_Rel.69205.zip","evidence":{"id":203406,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v2.60/","fetched_at":"2026-09-29T03:02:16.936791+00:00","observed_at":"2026-09-29T03:02:16.936791+00:00","http_status":200,"content_sha256":"2721ead2e80a923fb42ce1d691c58df1a91fe66efaae16ac9cdbc920005501a2","html":"//firmwarewatch.cc/evidence/203406","raw":"//firmwarewatch.cc/evidence/203406/raw"}},{"version":"Deco S4(US)_V2.6_1.6.1 Build 20231228","channel":"stable","claimed_release_date":"2024-01-30","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-01T18:37:57.630436+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Fixed some security vulnerabilities.","disclosure_score":0.06,"mentions_security":true,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2024/202401/20240130/S4_2.0_en_1.6.1_Build_20231228_Rel.59072.zip","evidence":{"id":203406,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v2.60/","fetched_at":"2026-09-29T03:02:16.936791+00:00","observed_at":"2026-09-29T03:02:16.936791+00:00","http_status":200,"content_sha256":"2721ead2e80a923fb42ce1d691c58df1a91fe66efaae16ac9cdbc920005501a2","html":"//firmwarewatch.cc/evidence/203406","raw":"//firmwarewatch.cc/evidence/203406/raw"}},{"version":"Deco S4(US)_V2.6_210607","channel":"stable","claimed_release_date":"2022-06-10","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-13T02:00:00.107884+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Modifications and Bug Fixes: 1. Optimized the IPTV/VLAN feature. 2. Added Network Optimization feature. 3. Added the switch of \"ignore Ping from WAN\". 4. Added the feature of changing the owner account. 5. Add the \"Service name\" and \"Access name\" options when the Internet Connection Type is PPPoE. 6. 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Added the option to change the Wi-Fi encryption type.","disclosure_score":0.43,"mentions_security":true,"cve_ids":[],"download_url":"https://static.tp-link.com/2020/202009/20200930/Deco S4_V2_200918.zip","evidence":{"id":203406,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v2.60/","fetched_at":"2026-09-29T03:02:16.936791+00:00","observed_at":"2026-09-29T03:02:16.936791+00:00","http_status":200,"content_sha256":"2721ead2e80a923fb42ce1d691c58df1a91fe66efaae16ac9cdbc920005501a2","html":"//firmwarewatch.cc/evidence/203406","raw":"//firmwarewatch.cc/evidence/203406/raw"}},{"version":"Deco S4(US)_V2.6_1.5.1_220113","channel":"stable","claimed_release_date":"2022-06-10","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-01T18:37:57.630436+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Modifications and Bug Fixes: 1. Optimized the client list module. 2. Increased the number of URLs for each category in the parental control function. 3 Improved system reliability. 4. Fixed the bug that Deco loses Internet connection under some ISP lines. 5. Fixed the bug that port forwarding does not work in some scenarios. 6. Fixed the bug of not being able to add KASA devices on the app.","disclosure_score":0.56,"mentions_security":false,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2022/202201/20220129/Deco_S4_V2_1.5.1_220113.zip","evidence":{"id":203406,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v2.60/","fetched_at":"2026-09-29T03:02:16.936791+00:00","observed_at":"2026-09-29T03:02:16.936791+00:00","http_status":200,"content_sha256":"2721ead2e80a923fb42ce1d691c58df1a91fe66efaae16ac9cdbc920005501a2","html":"//firmwarewatch.cc/evidence/203406","raw":"//firmwarewatch.cc/evidence/203406/raw"}}],"identifiers":[{"kind":"marketing_name","value":"Deco S4","normalized":"deco s4"}],"revisions":[{"slug":"tplink-deco-s4-v2","hardware_revision":"v2","region_code":"US"},{"slug":"tplink-deco-s4-v2-8-us","hardware_revision":"v2.8","region_code":"US"},{"slug":"tplink-deco-s4-v3-26-us","hardware_revision":"v3.26","region_code":"US"},{"slug":"tplink-deco-s4-v3-46-us","hardware_revision":"v3.46","region_code":"US"},{"slug":"tplink-deco-s4-v3-6-us","hardware_revision":"v3.6","region_code":"US"},{"slug":"tplink-deco-s4-v4-6-us","hardware_revision":"v4.6","region_code":"US"}],"evidence":{"archived_pages":1,"first_observed_at":"2026-08-01T18:37:57.630436+00:00"},"caveats":["observed_support.days is a lower bound: it runs from the first firmware we saw, because no source here publishes launch dates.","Patch latency is not computable for this product: its changelogs name no CVE ids."],"links":{"html":"//firmwarewatch.cc/devices/tplink-deco-s4-v2-6-us","self":"//firmwarewatch.cc/api/v1/products/tplink-deco-s4-v2-6-us.json","vendor":"//firmwarewatch.cc/api/v1/vendors/tplink.json","feed":"//firmwarewatch.cc/feeds/devices/tplink-deco-s4-v2-6-us.xml","methodology":"//firmwarewatch.cc/api/v1/methodology.json"}}