JS Days 2026: Announcing Innovations in JavaScript Development

The event ran over two days, with Ian Barker, technical support lead, handling the Q&A.

This format is designed to let participants fully absorb the video content before getting their questions answered.

Those who wanted to take part could scan the QR code provided during the event to go to the entry page.

The prize was a $100 award given to one person through a random draw, used as an incentive to encourage participation.

The reference point was the time in Dallas, Texas.

As a result, the announced presentation times were set two hours later than the actual live time. To prevent time zone confusion, participants had to check the presentation time against their own location.

Taylor Bliss, Sencha's chief operating officer, reached this finding by analyzing 623 million code changes.

This sharp decline was attributed to increased duplicate code caused by AI adoption and a lack of code standardization.

Sencha carried out a quality-focused release based on support tickets from customers.

This was a response to customer criticism at the time of 8.0's launch that it had new features but few improvements, and it stressed a customer-centered development philosophy.

This feature is not upcoming or in beta, and no separate application is required.

Ask Sensei AI provides functions such as documentation search, code examples, and suggested bug fixes. It supports developers without directly accessing or modifying their codebase. Sencha said the feature will evolve beyond a simple chat assistant into a future coding agent.

First, improving developers' everyday experience. Second, pursuing the adoption of AI for practical problem solving.

Third, focusing on supporting the performance and scalability that enterprise applications require. This is seen as a strategy to meet the demands of enterprise environments.

This feature lets users ask questions about a data set in everyday language, and the grid then filters or sorts the results accordingly.

In the long term, the company also aims to develop an AI-powered smart theme generator. This is expected to greatly improve data accessibility and user experience.

The intent appears to be using AI to raise development efficiency and give end users a more intuitive interface.

Ext JS 8.0 closed two gaps that were often cited when comparing it with other frameworks such as React, Angular, and Vue. Sachin Ibrahimpur said one was large-grid performance: horizontal buffering now lets it render more than 1,000 columns smoothly.

The other was accessibility, strengthened from version 8.4 of the modern toolkit with field ARIA support. Ext JS provides integrated support for more than 140 components without combining many libraries, a strength for building large-scale applications.

Sarina Dupont explained that Ext JS users can receive dedicated support along with a validated, cohesive set of components.

A paid subscription means working with a company that takes responsibility for security patches, upgrade paths, and the direction of the roadmap. This relieves the direct maintenance and security burden that comes with open source, and contributes to building a predictable and sustainable ecosystem.

Taylor Bliss explained that when using Sencha, the company has contractual obligations to take real action to resolve problems.

Open source leaves users bearing significant risk, and technical support there amounts to little more than a moral relationship, which contrasts it with commercial software. Commercial software, by contrast, carries problem-resolution obligations under contract, giving enterprise customers greater stability.

Sarina Dupont stressed that this is about connection, not replacement.

PDXJS provides a simplified path to open and modernize existing Sencha Architect projects. Rapid Ext JS, meanwhile, was introduced as a tool offering a workflow different from Architect's.

Sencha Architect is a visual app builder specialized in visually designing entire applications. Rapid Ext JS, on the other hand, is a Visual Studio Code extension, a low-code solution built for developers who want drag-and-drop UI construction with live preview inside their IDE.

The two tools serve different purposes and both are slated to be supported from version 8.1. Architect is useful for designing the overall structure of complex applications, while Rapid helps developers assemble UIs quickly with minimal manual coding.

Sarina Dupont said that alongside the React 8.1 update, support for the latest React versions would be provided.

It is difficult to respond to every React release immediately, but Sencha is working to narrow the gap. In particular, it is focusing on solving synchronization issues for enterprise customers, aiming to provide a stable development environment.

Sarina Dupont stressed that this is not a one-time promise but a deliberate design principle on Sencha's part. Ext 8.1 is planned as a release focused on quality, stability, and performance gains.

This is a strategic decision to minimize the cost and risk for enterprise customers of rewriting existing applications. Guaranteeing backward compatibility reduces switching costs for existing customers, makes upgrades easier, and helps maintain long-term customer relationships.

Through this approach, Sencha aims to offer a stable platform and help enterprise customers move smoothly toward future technology.

Sencha said the packaging approach for certain AI features has not yet been finalized. Sachin Ibrahimpur indicated that some AI features are expected to be included in subscriptions, while a small fee may be charged for some features judged to need more ongoing maintenance in the future.

Exact AI pricing will be officially announced around the time of release. This decision appears to reflect the costs of adopting and maintaining AI technology.