diff --git a/Modules/Package.resolved b/Modules/Package.resolved
index b0266cb038a9..67f396fc5d67 100644
--- a/Modules/Package.resolved
+++ b/Modules/Package.resolved
@@ -1,5 +1,5 @@
 {
-  "originHash" : "290c677a1f25cc1f2edde128a8aeed0e05518150573f3f2a100ff9682e7528e5",
+  "originHash" : "99d98c14b91770de283a7383acb622184d4770999b658b05b7be89012876c82c",
   "pins" : [
     {
       "identity" : "alamofire",
@@ -336,8 +336,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/automattic/wordpress-rs",
       "state" : {
-        "revision" : "ce52fb236c0e9acef1ae60e8d4fba0f5fbd11b7d",
-        "version" : "0.7.0"
+        "revision" : "a9cf67e4895c0bcfad75c6f1e07206c22bfaf1bb",
+        "version" : "0.8.0"
       }
     },
     {
diff --git a/Modules/Package.swift b/Modules/Package.swift
index 157fc629184e..8b79a1fb8816 100644
--- a/Modules/Package.swift
+++ b/Modules/Package.swift
@@ -66,7 +66,7 @@ let package = Package(
         .package(url: "https://github.com/wordpress-mobile/GutenbergKit", from: "0.19.0"),
         .package(
             url: "https://github.com/automattic/wordpress-rs",
-            exact: "0.7.0"
+            exact: "0.8.0"
         ),
         .package(
             url: "https://github.com/Automattic/color-studio",
diff --git a/Modules/Sources/WordPressComments/Models/CommentDetail.swift b/Modules/Sources/WordPressComments/Models/CommentDetail.swift
index 129b9054905d..a9e12ad959b1 100644
--- a/Modules/Sources/WordPressComments/Models/CommentDetail.swift
+++ b/Modules/Sources/WordPressComments/Models/CommentDetail.swift
@@ -16,7 +16,7 @@ struct CommentDetail: Equatable, Sendable {
     let parentID: Int64? // nil when the wire value is 0 (top-level)
     let contentHTML: String
     let link: URL?
-    let date: Date
+    let date: Date?
     var status: CommentListItem.Status
     /// False when the fetch fell back to view context (no email/IP; M3 edit
     /// needs content.raw, also unavailable).
@@ -69,7 +69,7 @@ struct CommentDetail: Equatable, Sendable {
         parentID: Int64,
         contentHTML: String,
         link: String,
-        date: Date,
+        date: Date?,
         status: CommentListItem.Status,
         hasEditContext: Bool
     ) {
diff --git a/Modules/Sources/WordPressComments/Models/CommentListItem.swift b/Modules/Sources/WordPressComments/Models/CommentListItem.swift
index 11329227dbe2..bda56781b00a 100644
--- a/Modules/Sources/WordPressComments/Models/CommentListItem.swift
+++ b/Modules/Sources/WordPressComments/Models/CommentListItem.swift
@@ -19,7 +19,7 @@ struct CommentListItem: Identifiable, Equatable, Sendable {
     let avatarURL: URL?
     let postID: Int64
     let snippet: String
-    let date: Date
+    let date: Date?
     var status: Status
 
     init(
@@ -28,7 +28,7 @@ struct CommentListItem: Identifiable, Equatable, Sendable {
         avatarURL: URL?,
         postID: Int64,
         snippet: String,
-        date: Date,
+        date: Date?,
         status: Status
     ) {
         self.id = id
diff --git a/Modules/Sources/WordPressComments/ViewModels/CommentDetailViewModel.swift b/Modules/Sources/WordPressComments/ViewModels/CommentDetailViewModel.swift
index 5a1ede3f41ae..bb0be5109352 100644
--- a/Modules/Sources/WordPressComments/ViewModels/CommentDetailViewModel.swift
+++ b/Modules/Sources/WordPressComments/ViewModels/CommentDetailViewModel.swift
@@ -28,7 +28,7 @@ final class CommentDetailViewModel: ObservableObject {
         let authorName: String
         let avatarURL: URL?
         let postID: Int64
-        let date: Date
+        let date: Date?
         let status: CommentListItem.Status
     }
 
diff --git a/Modules/Sources/WordPressComments/Views/CommentRowView.swift b/Modules/Sources/WordPressComments/Views/CommentRowView.swift
index 3fce673585f6..34cc266de872 100644
--- a/Modules/Sources/WordPressComments/Views/CommentRowView.swift
+++ b/Modules/Sources/WordPressComments/Views/CommentRowView.swift
@@ -25,9 +25,11 @@ struct CommentRowView: View {
                     .font(.subheadline)
                     .foregroundStyle(.secondary)
                     .lineLimit(2)
-                Text(item.date, format: .relative(presentation: .named))
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
+                if let date = item.date {
+                    Text(date, format: .relative(presentation: .named))
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
             }
         }
         .accessibilityElement(children: .combine)
diff --git a/Modules/Sources/WordPressComments/Views/Detail/CommentAuthorHeader.swift b/Modules/Sources/WordPressComments/Views/Detail/CommentAuthorHeader.swift
index fa112bc50239..b8fa720e9aa8 100644
--- a/Modules/Sources/WordPressComments/Views/Detail/CommentAuthorHeader.swift
+++ b/Modules/Sources/WordPressComments/Views/Detail/CommentAuthorHeader.swift
@@ -31,9 +31,11 @@ struct CommentAuthorHeader: View {
                 Text(header.authorName)
                     .font(.subheadline.weight(.semibold))
                 postLine
-                Text(header.date, format: .relative(presentation: .named))
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
+                if let date = header.date {
+                    Text(date, format: .relative(presentation: .named))
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
             }
             Spacer(minLength: 0)
             Image(systemName: "info.circle")
@@ -73,7 +75,9 @@ private struct CommentAuthorInfoSheet: View {
     var body: some View {
         NavigationStack {
             List {
-                LabeledContent(Strings.infoDateLabel, value: header.date.formatted(.dateTime))
+                if let date = header.date {
+                    LabeledContent(Strings.infoDateLabel, value: date.formatted(.dateTime))
+                }
                 if let url = detail?.authorURL {
                     Link(destination: url) {
                         LabeledContent(Strings.infoWebsiteLabel, value: url.absoluteString)
diff --git a/Modules/Tests/WordPressCommentsTests/CommentDetailTests.swift b/Modules/Tests/WordPressCommentsTests/CommentDetailTests.swift
index 2c77e3519586..13f56b1294d1 100644
--- a/Modules/Tests/WordPressCommentsTests/CommentDetailTests.swift
+++ b/Modules/Tests/WordPressCommentsTests/CommentDetailTests.swift
@@ -28,4 +28,9 @@ struct CommentDetailTests {
         let detail = CommentDetail(comment: .detailBuilder(authorName: ""))
         #expect(detail.authorName == Strings.anonymousAuthor)
     }
+
+    @Test func missingDateMapsToNil() {
+        let detail = CommentDetail(comment: .detailBuilder(date: nil))
+        #expect(detail.date == nil)
+    }
 }
diff --git a/Modules/Tests/WordPressCommentsTests/CommentListItemTests.swift b/Modules/Tests/WordPressCommentsTests/CommentListItemTests.swift
index 99628662deaf..ca34c72b3d08 100644
--- a/Modules/Tests/WordPressCommentsTests/CommentListItemTests.swift
+++ b/Modules/Tests/WordPressCommentsTests/CommentListItemTests.swift
@@ -30,6 +30,11 @@ struct CommentListItemTests {
         #expect(item.avatarURL == nil)
     }
 
+    @Test func missingDateMapsToNil() {
+        let item = CommentListItem(comment: makeComment(date: nil))
+        #expect(item.date == nil)
+    }
+
     @Test func statusMapping() {
         #expect(CommentListItem(comment: makeComment(status: .approved)).status == .approved)
         #expect(CommentListItem(comment: makeComment(status: .spam)).status == .spam)
diff --git a/Modules/Tests/WordPressCommentsTests/Support/CommentBuilders.swift b/Modules/Tests/WordPressCommentsTests/Support/CommentBuilders.swift
index b83b5e214cba..1e0c00fd0df0 100644
--- a/Modules/Tests/WordPressCommentsTests/Support/CommentBuilders.swift
+++ b/Modules/Tests/WordPressCommentsTests/Support/CommentBuilders.swift
@@ -10,7 +10,7 @@ func makeComment(
     content: String = "<p>Hello <strong>world</strong></p>",
     post: Int64 = 10,
     status: CommentStatus = .approved,
-    date: Date = Date(timeIntervalSince1970: 1_700_000_000)
+    date: Date? = Date(timeIntervalSince1970: 1_700_000_000)
 ) -> CommentWithViewContext {
     CommentWithViewContext(
         id: id,
@@ -18,7 +18,7 @@ func makeComment(
         authorName: authorName,
         authorUrl: "",
         content: CommentContentWithViewContext(rendered: content),
-        date: "2023-11-14T22:13:20",
+        date: WpDateString(value: "2023-11-14T22:13:20"),
         dateGmt: date,
         link: "https://example.com/?p=\(post)#comment-\(id)",
         parent: 0,
@@ -49,7 +49,7 @@ extension CommentWithViewContext {
         post: Int64 = 10,
         parent: Int64 = 0,
         status: CommentStatus = .approved,
-        date: Date = Date(timeIntervalSince1970: 1_700_000_000)
+        date: Date? = Date(timeIntervalSince1970: 1_700_000_000)
     ) -> CommentWithViewContext {
         CommentWithViewContext(
             id: id,
@@ -57,7 +57,7 @@ extension CommentWithViewContext {
             authorName: authorName,
             authorUrl: authorUrl,
             content: CommentContentWithViewContext(rendered: content),
-            date: "2023-11-14T22:13:20",
+            date: WpDateString(value: "2023-11-14T22:13:20"),
             dateGmt: date,
             link: "https://example.com/?p=\(post)#comment-\(id)",
             parent: parent,
@@ -82,7 +82,7 @@ extension CommentWithEditContext {
         post: Int64 = 10,
         parent: Int64 = 0,
         status: CommentStatus = .approved,
-        date: Date = Date(timeIntervalSince1970: 1_700_000_000)
+        date: Date? = Date(timeIntervalSince1970: 1_700_000_000)
     ) -> CommentWithEditContext {
         CommentWithEditContext(
             id: id,
@@ -93,7 +93,7 @@ extension CommentWithEditContext {
             authorUrl: authorUrl,
             authorUserAgent: "",
             content: CommentContentWithEditContext(raw: content, rendered: content),
-            date: "2023-11-14T22:13:20",
+            date: WpDateString(value: "2023-11-14T22:13:20"),
             dateGmt: date,
             link: "https://example.com/?p=\(post)#comment-\(id)",
             parent: parent,
diff --git a/Modules/Tests/WordPressCoreTests/MockWordPressClientAPI.swift b/Modules/Tests/WordPressCoreTests/MockWordPressClientAPI.swift
index 894985eea66b..d81050f9e555 100644
--- a/Modules/Tests/WordPressCoreTests/MockWordPressClientAPI.swift
+++ b/Modules/Tests/WordPressCoreTests/MockWordPressClientAPI.swift
@@ -137,7 +137,8 @@ final class MockUsersRequestExecutor: UsersRequestExecutor, @unchecked Sendable
             locale: "en_US",
             nickname: "testuser",
             slug: "testuser",
-            registeredDate: "2024-01-01T00:00:00",
+            registeredDate: Date(timeIntervalSince1970: 1_704_067_200), // 2024-01-01
+
             roles: [],
             capabilities: UserCapabilitiesMap(map: [:]),
             extraCapabilities: UserCapabilitiesMap(map: [:]),
diff --git a/Package.resolved b/Package.resolved
index 0e31d78f2a9a..959ce71fb8b4 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -336,8 +336,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/Automattic/wordpress-rs",
       "state" : {
-        "revision" : "ce52fb236c0e9acef1ae60e8d4fba0f5fbd11b7d",
-        "version" : "0.7.0"
+        "revision" : "a9cf67e4895c0bcfad75c6f1e07206c22bfaf1bb",
+        "version" : "0.8.0"
       }
     },
     {
diff --git a/Tests/KeystoneTests/Tests/Features/Posts/CustomPostEditorServiceTests.swift b/Tests/KeystoneTests/Tests/Features/Posts/CustomPostEditorServiceTests.swift
index 5277be0bc4c2..a4050541e664 100644
--- a/Tests/KeystoneTests/Tests/Features/Posts/CustomPostEditorServiceTests.swift
+++ b/Tests/KeystoneTests/Tests/Features/Posts/CustomPostEditorServiceTests.swift
@@ -358,11 +358,11 @@ private func makeRemotePost(
 ) -> AnyPostWithEditContext {
     AnyPostWithEditContext(
         id: PostId(1),
-        date: "2025-01-01T00:00:00",
+        date: WpDateString(value: "2025-01-01T00:00:00"),
         dateGmt: Date(timeIntervalSince1970: 0),
         guid: PostGuidWithEditContext(raw: nil, rendered: ""),
         link: "https://example.com",
-        modified: "2025-01-01T00:00:00",
+        modified: WpDateString(value: "2025-01-01T00:00:00"),
         modifiedGmt: Date(timeIntervalSince1970: 0),
         slug: "test-post",
         status: .draft,
diff --git a/Tests/KeystoneTests/Tests/Features/Posts/CustomPostSettingsViewModelTests.swift b/Tests/KeystoneTests/Tests/Features/Posts/CustomPostSettingsViewModelTests.swift
index cbf93ccfa1db..55eb9f14bb03 100644
--- a/Tests/KeystoneTests/Tests/Features/Posts/CustomPostSettingsViewModelTests.swift
+++ b/Tests/KeystoneTests/Tests/Features/Posts/CustomPostSettingsViewModelTests.swift
@@ -247,11 +247,11 @@ private func makePostWithDisabledConnection(
     let additionalFields = try WpAdditionalFields.fromJsonString(json: json)
     return AnyPostWithEditContext(
         id: PostId(1),
-        date: "2025-01-01T00:00:00",
+        date: WpDateString(value: "2025-01-01T00:00:00"),
         dateGmt: Date(timeIntervalSince1970: 0),
         guid: PostGuidWithEditContext(raw: nil, rendered: ""),
         link: "https://example.com",
-        modified: "2025-01-01T00:00:00",
+        modified: WpDateString(value: "2025-01-01T00:00:00"),
         modifiedGmt: Date(timeIntervalSince1970: 0),
         slug: "test-post",
         status: status,
diff --git a/Tests/KeystoneTests/Tests/Features/Posts/PostSettingsTests.swift b/Tests/KeystoneTests/Tests/Features/Posts/PostSettingsTests.swift
index b5b795fd5a8b..948187ca1737 100644
--- a/Tests/KeystoneTests/Tests/Features/Posts/PostSettingsTests.swift
+++ b/Tests/KeystoneTests/Tests/Features/Posts/PostSettingsTests.swift
@@ -1484,11 +1484,11 @@ private func makeRemotePost(
 ) -> AnyPostWithEditContext {
     AnyPostWithEditContext(
         id: PostId(1),
-        date: "2025-01-01T00:00:00",
+        date: WpDateString(value: "2025-01-01T00:00:00"),
         dateGmt: Date(timeIntervalSince1970: 0),
         guid: PostGuidWithEditContext(raw: nil, rendered: ""),
         link: "https://example.com",
-        modified: "2025-01-01T00:00:00",
+        modified: WpDateString(value: "2025-01-01T00:00:00"),
         modifiedGmt: Date(timeIntervalSince1970: 0),
         slug: "test-post",
         status: .draft,
diff --git a/WordPress/Classes/Login/SelfHostedSiteAuthenticator.swift b/WordPress/Classes/Login/SelfHostedSiteAuthenticator.swift
index 2fbc6010f3b6..13b303b97ad8 100644
--- a/WordPress/Classes/Login/SelfHostedSiteAuthenticator.swift
+++ b/WordPress/Classes/Login/SelfHostedSiteAuthenticator.swift
@@ -678,7 +678,7 @@ private extension SelfHostedSiteAuthenticator {
     }
 }
 
-private final class EmptyAppNotifier: WpAppNotifier {
+final class EmptyAppNotifier: WpAppNotifier {
     func requestedWithInvalidAuthentication(requestUrl: String) async {
         // Do nothing.
     }
diff --git a/WordPress/Classes/Networking/JetpackSocialFactory.swift b/WordPress/Classes/Networking/JetpackSocialFactory.swift
index 4d4d34411644..172c4672366a 100644
--- a/WordPress/Classes/Networking/JetpackSocialFactory.swift
+++ b/WordPress/Classes/Networking/JetpackSocialFactory.swift
@@ -34,8 +34,13 @@ public final class JetpackSocialFactory: Sendable {
         }
         let service = SiteSocialConnectionsService(
             client: WPComApiClient(
-                urlSession: URLSession(configuration: .ephemeral),
-                authentication: configuration.authentication
+                delegate: WpApiClientDelegate(
+                    authProvider: .staticWithAuth(auth: configuration.authentication),
+                    requestExecutor: WpRequestExecutor(urlSession: URLSession(configuration: .ephemeral)),
+                    middlewarePipeline: .default,
+                    appNotifier: EmptyAppNotifier(),
+                    languageProvider: WPComDeviceLanguageProvider()
+                )
             ),
             siteId: configuration.siteId,
             canMarkAsShared: canMarkAsShared
diff --git a/WordPress/Classes/Networking/WordPressDotComClient.swift b/WordPress/Classes/Networking/WordPressDotComClient.swift
index 8fa6f662235d..7c892fd93e1d 100644
--- a/WordPress/Classes/Networking/WordPressDotComClient.swift
+++ b/WordPress/Classes/Networking/WordPressDotComClient.swift
@@ -21,7 +21,8 @@ actor WordPressDotComClient: MediaHostProtocol {
             middlewarePipeline: WpApiMiddlewarePipeline(middlewares: [
                 WpComTrafficDebugger()
             ]),
-            appNotifier: WpComNotifier()
+            appNotifier: WpComNotifier(),
+            languageProvider: WPComDeviceLanguageProvider()
         )
 
         self.api = WPComApiClient(delegate: delegate)
@@ -173,3 +174,19 @@ extension RequestMethod: @retroactive CustomStringConvertible {
         }
     }
 }
+
+/// Asks WordPress.com to localize responses to the first of the user's preferred languages that
+/// WordPress.com supports.
+///
+/// Maps through the wordpress-rs language table, so regional variants such as `en-gb` resolve.
+/// Sends no locale when none of the preferred languages is supported.
+final class WPComDeviceLanguageProvider: WpComLanguageProvider {
+    func currentLanguage() -> WpComLanguage? {
+        for identifier in Locale.preferredLanguages {
+            if let language = WpComLanguage(locale: Locale(identifier: identifier)) {
+                return language
+            }
+        }
+        return nil
+    }
+}
diff --git a/WordPress/Classes/Services/ApplicationPasswordService.swift b/WordPress/Classes/Services/ApplicationPasswordService.swift
index 009361a448d2..a389a8233235 100644
--- a/WordPress/Classes/Services/ApplicationPasswordService.swift
+++ b/WordPress/Classes/Services/ApplicationPasswordService.swift
@@ -29,7 +29,8 @@ extension ApplicationPasswordService: ApplicationTokenListDataProvider {
         }
 
         if self.currentApplicationPasswordUUID == nil {
-            self.currentApplicationPasswordUUID = try? await apiClient.api.applicationPasswords.retrieveCurrentWithViewContext().data.uuid.uuid
+            self.currentApplicationPasswordUUID = try? await apiClient.api.applicationPasswords
+                .retrieveCurrentWithViewContext().data.uuid.uuid
         }
 
         return try await fetchTokens(forUserId: userId)
@@ -47,21 +48,17 @@ extension ApplicationPasswordService: ApplicationTokenListDataProvider {
 
 extension ApplicationTokenItem {
     init?(_ rawToken: ApplicationPasswordWithEditContext) {
-        guard
-            let uuid = UUID(uuidString: rawToken.uuid.uuid),
-            let createdAt = Date.fromWordPressDate(rawToken.created)
-        else {
+        guard let uuid = UUID(uuidString: rawToken.uuid.uuid) else {
             return nil
         }
 
-        let lastUsed = rawToken.lastUsed.flatMap(Date.fromWordPressDate(_:))
-
+        // wordpress-rs 0.8.0 delivers these as parsed `Date`s, not strings.
         self = ApplicationTokenItem(
             name: rawToken.name,
             uuid: uuid,
             appId: rawToken.appId.appId,
-            createdAt: createdAt,
-            lastUsed: lastUsed,
+            createdAt: rawToken.created,
+            lastUsed: rawToken.lastUsed,
             lastIpAddress: rawToken.lastIp?.value
         )
     }