In recent developments in Delaware appellate practice, several significant rulings and procedural changes have taken place, impacting the way cases are heard and decided in the state's highest courts. On February 16, 2026, the Delaware Supreme Court issued several key decisions that have reshaped the legal landscape for appellate practitioners and parties involved in appeals.One of the most noteworthy rulings from the Delaware Supreme Court involved a landmark decision on the standard of review for challenges to the sufficiency of evidence in civil cases. In a unanimous opinion, the Court held that trial courts must defer to the jury's factual findings unless they are clearly erroneous, adopting a more deferential approach to reviewing factual determinations made by lower courts. This ruling is expected to have far-reaching implications for litigants seeking to challenge jury verdicts on appeal.In another important development, the Delaware Supreme Court announced changes to the appellate procedure for filing briefs and other documents in electronic format. Effective immediately, all parties are required to file electronic copies of their briefs, appendices, and other submissions in addition to traditional hard copies. This move towards digital filing is aimed at streamlining the appellate process and making it more efficient for both the Court and the parties involved in appellate litigation.Furthermore, the Delaware Supreme Court also clarified the rules governing the preservation of issues for appeal, emphasizing the importance of raising all relevant arguments and objections at the trial court level. In its ruling, the Court reaffirmed that parties must make a clear record of their objections during trial proceedings in order to preserve those issues for appellate review. Failure to do so may result in waiver of the right to challenge those issues on appeal.Overall, these recent developments in Delaware appellate practice underscore the evolving nature of appellate law and the need for practitioners to stay abreast of the latest changes in procedure and jurisprudence. With the Supreme Court issuing key rulings on evidentiary standards, electronic filing, and issue preservation, it is clear that appellate practice in Delaware continues to evolve in response to the challenges of the modern legal landscape. As such, attorneys and litigants must be vigilant in understanding and complying with these developments to effectively navigate the appellate process in the state's courts.