{"slug":"tplink-deco-s4-v4-6-us","display_name":"Deco S4","model_name":"Deco S4","hardware_revision":"v4.6","region_code":"US","category":"mesh_node","vendor":{"slug":"tplink","name":"TP-Link"},"verdict":{"status":"quiet","label":"Gone quiet","confidence":"low","reason":"978 days of silence, past the 730-day floor that applies where there is no cadence to compare against","algorithm_version":"lifecycle-1","computed_at":"2026-09-30T02:14:43.739938+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":2,"first_release_date":"2023-08-03","last_release_date":"2024-01-26","days_since_last_release":978,"median_gap_days":null,"cadence_multiple":null,"observed_support":{"days":176,"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)_V4.6_1.1.2 Build 20231227","channel":"stable","claimed_release_date":"2024-01-26","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/2024/202401/20240126/S4_4.0_en_1.1.2_Build_20231227_Rel.84005.zip","evidence":{"id":203400,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v4.60/","fetched_at":"2026-09-29T03:02:06.896893+00:00","observed_at":"2026-09-29T03:02:06.896893+00:00","http_status":200,"content_sha256":"c57b6946597f693a071adff85c53ee0ec9eabd6d1d89c1011b6b3597d5b070c9","html":"//firmwarewatch.cc/evidence/203400","raw":"//firmwarewatch.cc/evidence/203400/raw"}},{"version":"Deco S4(US)_V4.6_1.1.1 Build 20230201","channel":"stable","claimed_release_date":"2023-08-03","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":"New features: 1. Support for customizing Satellite Deco signal source. 2. Support for customizing Clients connection preference. 3. Support for Reboot Schedule. 4. Support for NO-IP and DynDNS. 5. Support for setting Effective Time and Bandwidth Limit for guest network. 6. Added Smart DHCP switch under Access Point mode. 7. Added connection type of DS-Lite Auto mode. 8. Added connection type of V6 Plus. Improvements: 1. Improved system reliability and security.","disclosure_score":0.58,"mentions_security":true,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2023/202303/20230301/Deco_S4_V4_230201.zip","evidence":{"id":203400,"source_url":"https://www.tp-link.com/us/support/download/deco-s4/v4.60/","fetched_at":"2026-09-29T03:02:06.896893+00:00","observed_at":"2026-09-29T03:02:06.896893+00:00","http_status":200,"content_sha256":"c57b6946597f693a071adff85c53ee0ec9eabd6d1d89c1011b6b3597d5b070c9","html":"//firmwarewatch.cc/evidence/203400","raw":"//firmwarewatch.cc/evidence/203400/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-v2-6-us","hardware_revision":"v2.6","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"}],"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-v4-6-us","self":"//firmwarewatch.cc/api/v1/products/tplink-deco-s4-v4-6-us.json","vendor":"//firmwarewatch.cc/api/v1/vendors/tplink.json","feed":"//firmwarewatch.cc/feeds/devices/tplink-deco-s4-v4-6-us.xml","methodology":"//firmwarewatch.cc/api/v1/methodology.json"}}