Recall Archives

Tech Optimizer

June 10, 2025

Why Instacart Moved to Postgres & pgvector to Boost Semantic Search

Instacart serves 14 million daily users and manages billions of products, necessitating advanced search capabilities that go beyond keyword matching to understand user intent. The search system must reflect real-time inventory changes, leading to significant workloads on the database. Instacart transitioned from Elasticsearch and FAISS to a hybrid architecture using Postgres and pgvector, improving search performance and reducing write workloads by tenfold. This normalization allowed for better storage of machine learning features and improved flexibility. Moving compute closer to storage with NVMe resulted in a twofold increase in search performance. Instacart's migration to pgvector eliminated data duplication and operational complexity, enhancing search quality and user satisfaction, evidenced by a 6% decrease in searches with zero results.

AppWizard

June 8, 2025

Gamers, let’s not pretend PS Plus and Xbox Game Pass multiplayer subscriptions are okay – they’re exactly why PC gaming is arguably cheaper in the long term

Transitioning from console gaming to PC gaming involves challenges such as file management and technical adjustments, but it offers benefits like no multiplayer subscription fees. Console gamers often need to subscribe to services like Xbox Game Pass and PS Plus for online play, with exceptions for free-to-play games. While gaming PC hardware is more expensive initially, the long-term costs of playing games are lower due to access to affordable titles and frequent discounts on platforms like the Epic Games Store and Steam. In contrast, PlayStation games often retain their retail prices longer, limiting discount availability. The basic PS Plus plan costs .99 annually, similar to the price of a new game, while the 'Premium' plan costs 9.99 and lacks day-one title access. Xbox Game Pass offers better value with new games available on release day. Overall, while the initial investment in a gaming PC is high, the savings on games and lack of subscription fees make it a worthwhile choice.

Winsage

June 6, 2025

Best Windows apps this week

Microsoft has made significant updates for users in the European Union and European Economic Area, including the ability to uninstall the Microsoft Store while still receiving app updates, a reduction in notifications related to Edge, and increased control over web searches in Windows. This week features discounts on various applications, with some offers extending beyond a single week. Notable new or improved Windows apps include: - Fences 6.0: An updated desktop management tool that allows users to organize programs and links into customizable groups with new tab support. - Start Everywhere: An application launcher that complements the Windows Start Menu, enabling users to launch applications from any screen corner using mouse clicks, hotkeys, or active corners. - VeraCrypt 1.26: An open-source encryption software that allows users to encrypt their entire system, individual hard drives, or specific partitions, with new protective measures against screen recordings and captures.

Winsage

June 6, 2025

AI-powered Relight and Search now available in Microsoft Photos

The Microsoft Photos app has been updated on Windows 11, introducing new features for Copilot+ PCs. The Relight feature allows users to adjust lighting in images by positioning up to three light sources, changing light color, and setting a focus point, with additional brightness and intensity controls. Built-in presets are also available for quick application. This feature will initially be available on Snapdragon-powered Copilot+ PCs, with support for AMD and Intel-powered devices coming soon. The app now includes improved photo search using natural language, enabling users to find images by descriptive phrases. For commercial users signed in with Microsoft Entra ID, access to Restyle Image and Image Creator is now available. Users should update their Photos app to version 2025.11060.5006.0 or higher to access these features.

AppWizard

June 2, 2025

The greatest DOS games that defined the golden generation of DOS gaming

Before the rise of platforms like Steam, MS-DOS served as a foundation for many influential games that shaped the gaming landscape. - Dangerous Dave (1988): A slow-paced platformer known for its vibrant colors and imaginative enemies, though it was not widely successful. - Star Wars: TIE Fighter (1994): A game that provided a nostalgic experience of piloting spacecraft in a 3D environment, marking a formative moment in gaming. - Wolfenstein 3D (1992): An innovative title that showcased the potential of PC gaming and paved the way for future titles. - Sid Meier’s Civilization (1991): A highly influential game in the turn-based strategy genre, allowing players to build empires through strategy and diplomacy. - Prince of Persia (1989): Notable for its smooth animations and challenging gameplay, it laid the groundwork for future platformers. - SimCity 2000 (1993): A significant title in the city-building genre, allowing players to manage urban planning and budgets, influencing modern city simulation games. - DOOM (1993): A revolutionary first-person shooter that introduced fast-paced action and multiplayer gaming, establishing itself as a cornerstone of gaming history. MS-DOS gaming represents the starting point for many gamers, contributing to the evolution of gaming.

Tech Optimizer

June 1, 2025

Supercharging vector search performance and relevance with pgvector 0.8.0 on Amazon Aurora PostgreSQL

The Amazon Aurora PostgreSQL-Compatible Edition has integrated support for pgvector 0.8.0, enhancing vector search capabilities significantly. This version achieves up to 9x faster query processing and delivers 100x more relevant search results compared to previous iterations. Key improvements in pgvector 0.8.0 include: - Up to 5.7x improvement in query performance for specific patterns. - Introduction of the iterative_scan feature, enhancing recall for filter queries requiring approximate nearest neighbor (ANN) index searches. - Improved cost estimation for more efficient query planning, allowing the selection of traditional indexes for complex filtered searches. - Flexible performance tuning with two modes for iterative_scan: relaxed_order and strict_order. Previous versions faced challenges with overfiltering, where combining vector similarity search with traditional SQL filters resulted in fewer results than expected. The HNSW indexing algorithm accelerates vector similarity searches by creating a multi-layered graph structure for efficient navigation. Iterative index scans in pgvector 0.8.0 improve query reliability and performance by applying filters during the scanning process, reducing false negatives and enhancing performance. The configuration options for iterative scanning include off, strict_order, and relaxed_order, with relaxed_order providing the best balance between performance and accuracy. In performance tests, pgvector 0.8.0 demonstrated substantial improvements across various query patterns, with significant enhancements in result completeness and recall. The database can now efficiently handle enterprise-scale applications, such as e-commerce and recommendation systems, with high performance and result quality even as product catalogs expand. Best practices for deploying pgvector 0.8.0 include using HNSW with recommended parameters, creating additional indexes on commonly filtered metadata columns, and tuning query parameters based on specific use cases. Operational best practices involve using Graviton4-based instances for optimal performance, monitoring and tuning slow vector queries, and considering partitioning for very large tables.

Winsage

May 30, 2025

Windows 11 Version 24H2 Gets a Featured-Packed Optional Update

Microsoft has released the May optional update for Windows 11 version 24H2, introducing features such as the Win + C keyboard shortcut for quick access to Copilot, a drag tray feature, and cross-device resume notifications for OneDrive files. The Copilot+ feature is now available in the European Economic Area (EEA) and supports intelligent text actions in Spanish and French. Users can utilize the 'Ask Copilot' option to highlight text or images and open Copilot with the selected content. New text actions for summarizing, creating bulleted lists, or rewriting highlighted text are available for AMD and Intel-powered Copilot+ PCs. Pen users can configure a shortcut button for Click to Do, and Windows Search improvements allow direct typing of settings. The Narrator feature provides detailed descriptions of images for blind and low-vision users. Energy saver controls for IT admins have been introduced, along with HDR and Dolby Vision controls. A new FAQs section in Settings assists users with common inquiries, and mouse settings have been simplified. Users can now edit images shared through the Windows Share window, and a new drag tray area appears when dragging local files. Taskbar policies have been improved to allow unpinning specific apps. The features will roll out with the upcoming Patch Tuesday update, alongside the optional KB5058481 update for Windows 10, which reinstates the clock view displaying seconds on the calendar flyout.

AppWizard

May 28, 2025

Messaging app Signal will block Windows Recall from taking chat screenshots

Signal has introduced a "Screen Security" feature in its desktop application to prevent external programs, including Windows 11, from capturing screenshots of its interface. This feature is enabled by default and is a response to Microsoft's Recall feature, which captures app window screenshots for AI processing. Signal is concerned about the privacy risks posed by Recall's design, despite Microsoft's assurances of improved privacy controls. The developers have used Windows' Digital Rights Management technology to protect against unauthorized screenshots due to the lack of official APIs from Windows 11. Signal's leadership has criticized the need for such workarounds and has called on Microsoft to provide better tools for developers to safeguard user privacy.

BetaBeacon

May 28, 2025

Subnautica Is Coming to Android: Time to Dive into the World Beneath the Blue

Subnautica, a survival game from 2018, is being released on Android and iOS as a premium game without ads or in-app purchases. The developers have rebuilt the interface for touchscreens and ensured that players can enjoy the full game experience, including exploring an alien underwater world, surviving in different modes, and encountering terrifying creatures. The game officially launches on July 8, and interested players can pre-register on Google Play and the App Store for early access.

Winsage

May 27, 2025

Windows on Arm vs Intel: Which laptop platform is right for you?

The Windows laptop market has shifted towards devices powered by Qualcomm Snapdragon processors, moving away from traditional Intel and AMD architectures. This initiative, known as Windows on Arm, has produced notable products like the Asus ZenBook A14 and Dell XPS 13, which are praised for their performance in AI applications and impressive battery life. These devices can run Intel-based applications through an emulation layer called Prism, which translates x86-64 code into ARM64 instructions, allowing compatibility with non-native software. While they perform well for office tasks and some creative applications, limitations exist in gaming and high-demand software due to the need for specific drivers and graphics performance. Currently, the market features three Windows on Arm processors: Snapdragon X Elite, X Plus, and X. Pricing for these laptops often exceeds ,000, making Intel and AMD options more appealing for budget-conscious consumers.